Usually analysis of Sephiroth's name ends on "Sephiroth is a Tree of Life from Kabbalah" and leaves readers in perplexity, how the Tree of Life can be connected with a game character. In this article we examine in details what is "Sephiroth" as philosophical conception and as archetype. It will give us a possibility to go deeply into Sephiroth's character and understand why authors of the Game called him with exactly this name.