Layers are not difficult for me. You have the luxury of takes, so if you feel like, say, you did not take in the fact that your aunt is across the way in one take, you do it again and try to add that piece.
Voice comes to you through a spell, a trance. The best voices are not you... they're a little away from you.
If I were asked to name the chief benefit of the house, I should say: the house shelters day-dreaming, the house protects the dreamer, the house allows one to dream in peace.