Levias is a wise, whale-like Sky Spirit in Skyward Sword. He has served as the protector of the skies for ages and lives in the Thunderhead. Levias has a particular fondness for Pumm's pumpkin soup, which Pumm always offered on a sky isle that had a perpetual rainbow above it, before the Thunderhead engulfed it.
Before the goddess Hylia transferred her soul into the body of a mortal, she appointed Levias as the guardian of the skies. She also left the Sky Spirit a hint as to the location of the Triforce, which was one of the four parts of the "Song of the Hero", a melody that would unlock the final trial for the chosen hero. However, at one point, Levias was corrupted by evil forces and became plagued with parasitic eye-like appendages, possessing him and causing him to attack anyone who comes near.
After learning of Levias from the Headmaster Gaepora, Link speaks to Owlan and learns that although Levias can be found in the Thunderhead, he has become possessed by Bilocyte and will not listen to reason. He tells the young hero to talk to Pumm, who makes annual Pumpkin Soup offerings to Levias. Link uses this knowledge to his advantage and places a basin of Pumpkin Soup in an island of the Thunderhead to lure the beast out of the cloud sea and, with the aid of his Loftwing and the newly-learned technique Spiral Charge, removes the parasites. Upon the removal of the last visible parasite, a Bilocyte occupying Levias' blowhole emerges. Link removes this parasite as well, and upon hearing that Link was searching for the Triforce, Levias informs him of the four parts of the "Song of the Hero" is needed to find the Triforce. Levias then instructs Link to track down the three surface dragons, Faron, Lanayru, and Eldin, to learn their parts of the melody. Once he has done this, Levias imparts the final part of the "Song of the Hero" to Link.
Levias' name is derived from לויתןLeviathan, a mythological monster from Biblical text (Job 41). Fittingly, the modern Hebrew form of the word means "whale."
Levias is the second flying whale creature to appear in the series, the first being the Wind Fish in Link's Awakening. Because of this, it has been theorized by some fans that Levias and the Wind Fish may be related, if not the same being.
↑"Surely you're familiar with Levias, the great sky spirit who has guarded our realm for ages? Levias has served as the protector of our skies for a long time, and his knowledge of our world is encyclopedic, to put it mildly." — Gaepora (Skyward Sword)
↑"If I'm correct, Levias is the one inside the thunderhead. But...that's not the Levias that we all know. That's...a monster!" — Owlan (Skyward Sword)
↑ 4.04.1"Every year I offer him an entire basin full of my pumpkin soup! But lately a huge thunderhead has been brewing there, and I haven't yet made this year's offering. I tell you, I feel horrible about it!" — Pumm (Skyward Sword)
↑"I am the great spirit they call Levias. Before she passed from this world so long ago, the goddess Hylia appointed me as warden of the skies." — Levias (Skyward Sword)
↑ 6.06.1"Oh, but the goddess did entrust me with a hint as to the Triforce's location. The clue is a song, meant to be played on the harp you hold. It is known as the Song of the Hero. The song is the key to revealing the secret location of the Triforce. The goddess split this song into four parts. She entrusted one part to me and the other three to the dragons of the land." — Levias (Skyward Sword)
↑"It certainly looks like Levias, but last time I approached him, he came rushing at me! And his eyes... They were full of malice." — Owlan (Skyward Sword)
↑"When they've taught you what they know, come to me and I will complete the song with my own voice!" — Levias (Skyward Sword)