(He who knows) Aditi also, who is one with all deities, who arises with Prâna (breath or Hiranyagarbha), who, entering into the heart, abides therein, and was born from the elements. This is that.

In plain words: The Self is also Aditi, the mother of the gods, who holds all the gods within her. She comes forth with the breath of life, lives in the heart and appears through the elements. This too is that Self.