When Spirit manifests creation. It becomes the Trinity: Father, Son, Holy Ghost, or Sat, Tat, Aum.
The Father (Sat) is God as the Creator existing beyond creation (Cosmic Consciousness).
The Son (Tat) is God's omnipresent intelligence existing in creation (Christ Consciousness or Kutastha Chaitanya).
The Holy Ghost (Aum) is the vibratory power of God that objectifies and becomes creation.
Many cycles of cosmic creation and dissolution have come and gone in Eternity (see yuga). At the time of cosmic dissolution, the Trinity and all other relativities of creation resolve into the Absolute Spirit.