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Gáe Bulg: The Powerful Celtic Spear of Death

The Celtic mythology of Ireland and Scotland is home to many fascinating weapons but none can match the gruesome Gae Bulg. The spear of the feared Irish hero Cú Chulainn has no equal in its devastating magical power. It rivals many of the great divine weapons of other religions and mythologies.

What is the Gae Bulg?

The Gae Bulg, also called Gae Bulga or Gae Bolg, literally translates as Belly Spear. The more commonly used meanings of the name, however, are Spear of Mortal Pain and Spear of Death. The reason for these dramatic interpretations is quite simple.

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FFXIV Gae Bulg DIY Cosplay Prop Kit
An artist’s imagining of the Gae Bulg. Source.

The Gae Bulg is a devastating weapon that’s not only guaranteed to kill anyone it’s thrown at, but to also cause unimaginable pain in the process. The way this weapon accomplishes that is quite unique and includes several steps:

  • The spear is guaranteed to always penetrate the enemy’s armor and skin, creating a single point of entry.
  • Once inside the victim’s body, the single point of Gae Bulg is said to separate into multiple pointy blades. It then starts spreading through the highways and byways of his body so that every single joint is filled with barbs as described in the Ulster cycle. In other words, the spear simultaneously pierces all veins, joints, and muscles of the victim from the inside.
  • Once the victim dies an agonizing death, the spear cannot be pulled out because it stays divided into countless blades inside the body. Instead, the only way to get the spear back is to cut the corpse open.

While impractical in anything other than a duel, Gae Bulg is a devastating weapon that’s capable of killing anyone it encounters. It’s often described as either a single-point javelin or as a multi-point spear. According to the Book of Leinster, Gae Bulg was made out of the bones of the sea monster Curruid, which died in a fight with another sea monster, the Coinchenn.

Gae Bulg vs. Other Mythological Spears

Odin’s Spear: Gugnir. PD.

There are other popular spears in different mythologies, but somehow, the Gae Bulg stands apart from all of them with it’s unique properties. Let’s take a quick look at some of these.

  1. Gungnir: This is the spear of Odin, the chief god in Norse mythology. Gungnir was created by the Dwarves, master craftsmen of the gods, and was said to never miss its mark when thrown. In comparison, while Gáe Bulg is also a weapon of great power, its main feature is its lethal barbs, rather than unerring accuracy.
  2. Trishula: In Hindu mythology, the Trishula is the three-pronged spear of the god Shiva. It symbolizes the three fundamental aspects of life: creation, maintenance, and destruction. Compared to Gáe Bulg, Trishula has a more profound spiritual significance, representing balance and mastery over the world and self, whereas Gáe Bulg is primarily a weapon of physical destruction.
  3. Spear of Longinus (Holy Lance): In Christian tradition, this is the spear that a Roman soldier, named Longinus, used to pierce the side of Jesus Christ during his crucifixion. The Spear of Longinus is believed to possess great power or a curse, depending on the story. Unlike Gáe Bulg, this spear is associated with a historical event and religious miracles, rather than heroic battles in mythology.
  4. Areadbhar (Areadbhair): Another spear from Irish mythology, Areadbhar belonged to the sea god Lugh. It was said to be so eager for battle that it would spontaneously ignite unless submerged in a pot of poppy seeds to keep it calm. The comparison to Gáe Bulg is especially interesting since both are powerful weapons from the same mythological tradition, with somewhat similar ‘eager for battle’ descriptions.

Symbols and Symbolism of Gae Bulg 

Sterling Silver Viking Odin Gungnir
Odin Gungnir. Source.

While the Gae Bulg doesn’t carry any fantastic cosmic powers or control over the elements like other mythological weapons, it’s undoubtedly one of the most gruesome and tragic weapons out there.

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Capable of slaying anyone and anything, while also guaranteeing devastating pain and suffering, Gae Bulg seems to always lead to sorrow and regret after its use.

The symbolism of this spear isn’t explicitly stated but it does seem pretty clear. Great power should be handled carefully. It often comes at a cost and should be controlled. The significance of Gáe Bulg is largely tied to its role in these tales of heroism, friendship, and tragic conflict in Irish mythology. It’s a symbol of the power and the danger of martial prowess, and its use often comes with high emotional cost.

Mythology of Gae Bulg

Cuchulainn Stephen Reid
The Young Cú Chulainn in Training. PD.

Gift from the Shadow

Gae Bulg is the signature weapon of one of Ireland’s greatest mythological heroes, Cú Chulainn, from the Ulster Cycle of Irish mythology. Cú Chulainn wasn’t given the deadly spear. He had to earn it.

According to the Ulster cycle, Cú Chulainn is tasked with performing a series of challenges to earn the hand of his beloved Emer, the daughter of the chieftain Forgall Monach. One of these tasks requires Cú Chulainn to travel to Alba, which is the ancient Gaelic name for modern-day Scotland.

Once in Alba, Cú Chulainn has to receive training from Scáthach, a legendary Scottish warrior woman and martial arts expert. Scáthach lived in Dún Scáith on the Isle of Skye, but the popular name of her residence is the Fortress of Shadows. In fact, Scáthach herself is often called Warrior Maid or Shadow.

The Shadow’s main rival in the Isle of Skye at the time of Cú Chulainn’s arrival is Aife, a fellow warrior daughter of Árd-Greimne of Lethra. Cú Chulainn came to Scáthach together with his best friend and foster brother Fer Diad. Scáthach agrees to train both of them in martial arts but she only gives Gae Bulg to Cú Chulainn.

A Series of Unfortunate Affairs

During their training, Cú Chulainn began an affair with Scáthach’s daughter, the beautiful Uathach. On one occasion, however, he accidentally broke her fingers, causing her to scream. Her scream caught the attention of her official lover Cochar Croibhe, who rushed into the room and caught Uathach and Cú Chulainn together.

Against Uathach’s protests, Cochar Croibhe challenged Cú Chulainn to a duel, but the hero was forced to kill the scorned lover with ease. However, he doesn’t use Gae Bulg, but instead kills Cochar Croibhe with his sword. To make it up to Uathach and Scáthach, Cú Chulainn promises to marry Uathach instead of his beloved Emer.

Later in the story, Scáthach’s rival Aife attacks the Dún Scáith Fortress of Shadows and Cú Chulainn aides in repelling her. With his sword at her throat, Cú Chulainn forces her to swear that she’ll cease her attacks on Scáthach’s realm. In addition, as further payment for her life, Aife is forced to have sex with Cú Chulainn and to bear him a son.

Defeated, raped, and cast out, Aife retreats back to her realm where she gives birth to Cú Chulainn’s son Connia. As Cú Chulainn never goes to visit Aife in Alba, however, he never really sees Connia until later in the story. Cú Chulainn does leave Aife a gold thumb-ring and tells her to send Connia to him in Ireland when he grows up. He also tells Aife to instruct Connia on three things:

  • To never turn back to Alba once he starts his journey to Ireland
  • To never refuse a challenge
  • To never tell anyone in Ireland his name or lineage

The Gae Bulg is Used for the First Time

Cuchulainn Carries Ferdiad Across the River
Cuchulainn Carries Ferdiad Across the River. PD.

The first time Cú Chulainn uses Gae Bulg is some time after his and Fer Diad’s training with Scáthach is over. The two heroes, friends, and foster brothers find themselves on the opposite sides of a war and are forced to fight to the death in a ford next to a stream.

Fed Diad gets the upper hand in the fight and gets close to landing the killing blow on Cú Chulainn. At the last minute, however, Cú Chulainn’s charioteer Láeg floated the Gae Bulg spear down the stream to his master’s side. Cú Chulainn caught the deadly spear and plunged it into Fer Diad’s body, killing him on the spot.

As Cú Chulainn was distraught for killing his friend, he had Láeg help him get the spear back from Fer Diad’s body. As the story goes:

Láeg came forward and cut Fer Diad open and took out the Gáe Bolga. Cú Chulainn saw his weapon bloody and crimson from Fer Diad’s body…

Gae Bulg is Used to Commit Filicide  

As if killing his brother with Gae Bulg wasn’t traumatic enough, Cú Chulainn later found himself having to kill his own flesh and blood – Connia, the son he had with Aife.

The tragic event happened years later. Cú Chulainn hadn’t used Gae Bulg since killing Fer Diad because of how devastating the weapon was. Instead, he used his sword in most of his feats and kept Gae Bulg as a last resort.

That’s exactly what he had to do when Connia eventually made his way to Ireland. Upon arriving at his father’s land, Connia quickly found himself in several fights with other local heroes. The squabble eventually reaches Cú Chulainn’s ears who comes to face the intruder against the warning of his wife, Emer.

Cú Chulainn tells Connia to identify himself, which Connia refuses to do as per his mother’s instructions (which, if you remember, Cú Chulainn had given her). Father and son start to wrestle in the water of a nearby spring and the young and strong Connia soon starts to get the upper hand. This forces Cú Chulainn to once again reach for his last resort – Gae Bulg.

Cú Chulainn spears Connia with the weapon and wounds him mortally. It’s only then that Cú Chulainn realizes that Connia is his son. but it’s too late to stop the weapon from piercing all of Connia’s internal organs.

Importance of Gae Bulg in Modern Culture

Gae Bulg isn’t as popular internationally today as many weapons from other mythologies, however, the myth of Cú Chulainn and Gae Bulg remains well-known in Ireland.

Some of the modern culture works of fiction which feature variants of Gae Bulg include the visual novel game series Fate, an episode of Disney’s 1994 animation Gargoyles titled The Hound of Ulster, and many others.

The weapon seems especially popular in video game franchises such as the Final Fantasy series, Ragnarok Online (2002), Riviera: The Promised Land, Disgaea: Hour of Darkness, Phantasy Star Online Episode I & II, Fire Emblem: Seisen no Keifu, and others.

There’s also the famous Negima manga series, Patrick McGinley’s 1986 novel The Trick of the Ga Bolga, and the High Moon fantasy webcomics.

Wrapping Up

The Gae Bulg is a fantastic weapon, but it’s use is always followed by pain and regret. It can be seen as a metaphor for controlling power and wielding power wisely. Compared to other mythological weapons, like Thor’s hammer or Zeus’ thunderbolt, the Gae Bulg doesn’t hold any great inherent powers. However, it remains one of the most fascinating weapons of any mythology.

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Yordan Zhelyazkov
Yordan Zhelyazkov

Yordan Zhelyazkov is a published fantasy author and an experienced copywriter. While he has degrees in both Creative Writing and Marketing, much of his research and work are focused on history and mythology. He’s been working in the field for years and has amassed a great deal of knowledge on Norse, Greek, Egyptian, Mesoamerican, Japanese mythology, and others.