Don't think me being difficult here, but 'not' believing in something kind of prevents having an image to work with.
Like - Not believing in there being other universes prevents developing an image of them.
When I consider 'God' I don't (nor do my christian, muslim or jewish friends) connect with the hollywood prescribed humanesque father-figure. God claims omnipresence (everywhere at once) - I can't imagine 'everywhere' at once. So I am at a loss, as are my friends, in the visualisation-factor.
And, if that God is everywhere - That God is 'everything' - Again, inconceiveable.