The underlined portion is the part that I have issue with. God appeared to man people. Jesus appeared to Paul, Saul at the time, and looked every bit as real as you and I. Angels have appeared. If you notice throughout scripture that when heavenly beings appear the first thing that they say is "Fear Not" True God abides by the science and Laws beyond what we could never understand, BUT his knowledge of them FAR exceeds that of our own. To most Christians, the existence of heavenly beings is real and tangible. There are even records of people actually touching the body of Christ after his resurrection to prove to each that what they were saying is in fact real.