The author posits a distinction-union structure made up substructures veering more toward distinction (difference) and more toward union. Mixtures of these subtendencies open many experiential dimensions. Discussion includes Bion’s O, Marion Milner’s zero (pregnant emptiness), communion (co-union), scenes from Bion’s A Memoir of the Future, orgasmic thought, jouissance, and a climactic orgasm-death scene in the Zohar. There are so many kinds of O-moments reaching beyond imaginings, opening one’s heart to unknown intimacies.