the spirit world is around us, it is in a dimension that we mortals cannot see. However angels can be sent to earth, there are numerous accounts. We also have the evidence from the Garden of Eden that God did visit Adam and Eve. Just because a person is seen in one location it does not mean it is their usual residence. Certainly the physical body goes into the ground if they are buried. The spirit is what animates the physical body. There is a great deal of misunderstanding who the sons of God were. It is mistakenly assumed to be beings similar to those found in Greek mythology who would come to earth and have sexual relations with mortal women. the term sons of God refers to mortal men who made covenants with God, do the scriptures not repeatedly refer to us as children of God? This message is consistently found throughout scripture. God is the father of our spirits, how did Jesus teach us to pray? how did he address God? Our FATHER who art in heaven. When the Jews accused him of blasphemy what did he say to them? Ye are all gods. The key difference between Jesus Christ and us is that God the Father is the father together with Mary of his earthly body, hence he is called the Only Begotten of the Father. The message of the scriptures is a simple and consistent path.