In a strictly Newtonian universe which can be understood in mechanical and electrical terms, I would be an Atheist. 

However, in the case of a universe that appears to be wrapped around and filled with a reality that can only be hinted at by Quantum physics and appears to be relational in nature, I would say we should be really careful about what we think is possible. 

Biblical scholar N.T. Wright in his book "Surprised by Hope: Rethinking Heaven, the Resurrection, and the Mission of the Church" postulates the writers of the Gospels had words to describe ghosts, phantasms and fond memories, and didn't use any of them to describe the resurrected Jesus. They also were NOT describing a resuscitated corpse, either. They were attempting to describe something "really real"in the best way they could with the words they had.