Question: What does a person feel when he discovers for the first time that he is inside the Upper Light?
Answer: One feels warmth, some kind of comforting light, some enveloping fog that fills the world. It is the Force of love, the Force that embraces, caresses, supports, and protects you. You as if feel that you are in the womb of the mother. This is how you can recognize the Upper One: through the way the Upper spiritual Mother treats us, the embryo living in her womb.
From Kabbalah for Beginners, “There is None Else Beside Him” 7/29/10