Is our fellowship with God real?

Following from my post on Genesis 1, how can we tell that our fellowship with God is real if we deny that his basis for that fellowship: his creation, is not real?

One cannot have it both ways: if Genesis 1 is tossed out, so is what it is said to teach; correspondingly, if it teaches something, it teaches about our fellowship with God as real in a real world created in real terms reflective of that world's real-ness by its real creator.

 Here are some thoughts.

OTOH, if we put Genesis 1 in a box (or 'bubble') we don't end up with knowledge of the God who is, but have a god who is constructed of the 'real world' that comes from somewhere else.