(Hebrew עדן) Eden means “bliss, pleasure, delight.” In the book of Genesis written by Moses [Moshe], Eden is a symbol with many levels of meaning.
Of primary importance, in the book of Genesis / Bereshit, the primeval state of humanity is depicted in the Garden of Eden. This story symbolizes that when the man and the woman are performing the sexual act, they are in that moment in the Garden of Eden, enjoying that bliss, delight, or voluptuousness, and it is in that state when the serpent (Lucifer) appears in order to tempt them.
"Eden is the Ethereal World. Eden is sex itself. The Ethereal World is the abode of the sexual forces. The Ethereal World is Eden. We were driven out of Eden through the doors of sex, thus we can return to Eden only through the doors of sex. We cannot enter into Eden through false doors; we must enter into Eden through the doors out of which we were driven. The governor of Eden is the Lord Jehovah." - Samael Aun Weor, The Major Mysteries
In Kabbalah, there are two Edens.
"...there is a Garden of Eden above and another below." - Zohar
The Upper Eden is the sephirah Daath. The Lower Eden is the sephirah Yesod. Both are related to sex.