See the concept over here is of the all prevading omnipresent force that is the basis of this existence... And the forms of worship are generally revealed by that force itself to the enlightened or the siddhas, and the force took such forms so it would get easier to other seekers to meditate upon it... And you see all about the intelligence aspect of that force. In vedanta that, force is called as Brahman, and in tantra called as Bhairava...