There seems to be something poetically that doesn't work or is limiting when you call God 'God' in a poem. When I tried to be honest with myself in my relationship with God, Christ is, on the one hand, completely dark, he's transcendent and unknown. On the other hand, he is completely imminent and completely knowable as Jesus. Our tradition speaks of him in both ways as transcendent but also as a lover who comes to us, and the two word 'Dark One' seem to me to contain both things, the transcendence and otherness of Christ, but also like a kind of dark lover who comes to us.