As these flowing rivers that go towards the ocean, when they have reached the ocean, sink into it, their name and form are broken, and people speak of the ocean only, exactly thus these sixteen parts of the spectator that go towards the person (purusha), when they have reached the person, sink into him, their name and form are broken, and people speak of the person only, and he becomes without parts and immortal. On this there is this verse:

In plain words: The sage Pippalada explains that rivers lose their separate names when they flow into the ocean, and people then speak only of the ocean. In the same way, the sixteen parts that make up a person (breath, senses, mind and the rest) merge back into the true Self, called the purusha. Then only that Self remains, whole and undying.