A soul that believes God, experiences God’s infinite power, knowledge and bliss continuously, is called God realization. When one realizes the God, he has to be very humble on it. The ego keeps the person from the state of consciousness. When one can identify with one’s highest self and remain in that consciousness forever, one can reveal and manifest it at one’s own command that is God realization.
When a soul started its cosmic journey, it was totally pure. In Hinduism, the first step towards realizing the self is claiming one’s identity as a spiritual being, a divine soul. Travelling spiritual path is essential for our atman...never the mortal human form. Assisting our soul for reaching cosmic end is our duty.
So when you realize god you find him within your own being. The fact is that god dwells within each one of us, but we are not all dwelling god. So we have to be inside of religion and practice spiritual disciplines to realize the infinite God.