The essence of all religious principles in the age of Kali is chanting of the holy names of the lord. One cannot be delivered by following any other religious principles.
The word Brahman indicates the complete Supreme Personality of Godhead, who is Sri Krishna. That is the verdict of all vedic literatures.
The conditioned soul cannot revive his Krishna consciousness by his own effort but out of causeless mercy, Lord Krishna compiled the Vedic literature and its supplements, the Puranas.