One who has attained the power of bhakti is called a bhakt (भक्त, bhakta).
This term is also used more broadly for anyone who intensely adores something or someone, e.g., one who loves money is often referred to as a "bhakt of wealth."
Ignorance of God is not neutral. It keeps the soul bound within Maya, suffering, and endless birth.
Reality consists of three eternal truths: God, soul, and Maya. This article explains their relationship.
Brahm, Paramatma, and Bhagavan are not different Gods, but different realizations of the one Divine Reality.
God is not void or abstraction. The Vedas define His nature as Sat-Chit-Ananda: eternal existence, consciousness, and bliss.