Egotheism is deification of the self, or the view that the idea of God is nothing more than a conception of the self. The latter position presupposes the impossibility of divine revelation

Revelation

In religion and theology, revelation is the revealing or disclosing, through active or passive communication with a supernatural or a divine entity...

. As such, it is a denial of the validity of faith

Faith

Faith is confidence or trust in a person or thing, or a belief that is not based on proof. In religion, faith is a belief in a transcendent reality, a religious teacher, a set of teachings or a Supreme Being. Generally speaking, it is offered as a means by which the truth of the proposition,...

and most theistic traditions, except for deism.

Identification of the self with the divine, is a tenet of Hinduism (Atman as the "true self"), and certain versions of Christianity (e.g., St. Athanasios, held that God became man so that man could become God).