We have all wondered why we are here, and the answer is, Satan challenged God that he could make man want to serve him more than they would want to serve God, so God accepted the challenge, and Isaiah 24:1 says that God turned the earth upside down ending Satan’s reign over the Kingdom God had given him in the beginning and bringing about the flood of Genesis 1: 2 where it says that God’s face moved upon the deep, God did not create the earth under water, it became under water when God turned the earth upside down because of sins that was done by Satan over those that he had rule over back then, that is explained in the book of Ezekiel 28: 11-17. The earth stayed desolate for an unknown number of years between verse one and two of Genesis chapter one and has been known as the dateless past. So when God said let us make man in our own Image He was talking about the Father the Son and the Holy Ghost, and that is when Adam was created bring about the rest of us.