Hiranyagarbha, also known as the cosmic egg, represents the underlying, undifferentiated reality from which the diverse phenomena of the universe originate.
It symbolizes an eternal and unchanging essence, remaining unaffected by the cyclical nature of the universe.
Advaita Vedanta and modern cyclic cosmological models find similarities in their ideas of cyclicity and underlying continuity.
Both perspectives emphasize the emergence of the universe from a concentrated, primordial state with the potential for all future forms.