God of our Cranial Capacity

If God is only a set of doctrines, arguments, systems of thought, and theologies, then God is only as big as your lobe. How often are we worshipping someone (or something) that only fits within the confines of our finite imaginations and understandings?

If this is our "god" then do we have faith in Him, or in ourselves and our minds? And if that is the case, is there any wonder how often we feel alienated from Him, the real Him? It's like putting the power plug of your desk lamp into a bowl of jello rather than the electrical outlet.