Complete combination; the absolute in the relative and vice versa; the identity of apparent contraries; perfect harmony among all differences, as in water and waves, passion and enlightenment, transmigration andnirvāṇa, or life and death, etc.; all are of the same fundamental nature, all arebhūtatathatā, andbhūtatathatāis all; waves are one with waves, and water is one with water, and water and wave are one.