Jesus came from heaven in a form like our souls and took on the flesh appearance as a baby. He did this so he could indure the same temptations that we do. Satans corruptions and influence on the world was destroying what God made. Jesus loved all of us so much that he gave himself as the living sacrifice for our sins. As Jesus lived here on this earth he stayed about Father Gods business which is ... All of Us turning away from Sin (which separates us from God) and bringing people to a saving knowledge of our Father in heaven. Jesus set the example and taught people how we should live and serve God. We have Gods Word the Holy Bible as our owners manual for our lives today which is full of Jesus and his teachings. You asked if Jesus is spirit now and the answer is yes! His earthly body decayed like ours does and when he went back to Father God he was in spirit form like our souls. Flesh is sinful ...it cannot enter the Kingdom of Heaven. In the beginning of Creation God said "Let us make man in our own image" and thats where our souls come in to play. God, Jesus and all of heaven is not of our sinful ways... flesh cannot enter the Kingdom of Heaven. Jesus is in Heaven at this very momment in spirit form, at the right hand of Gods throne pleading for the lost sinners souls to be saved and not lost to Satans Eternal Hell. God made Adam and Eve from the dust of the earth and our bodies turn back to dust when we die and our soul is at rest till Jesus returns to call all who have received Gods Salvation Plan and the souls which are within us goes to meet him in the air. Our Sins of the flesh go all the way back to when Satan tempted Adam and Eve in the garden of eden. Satan has been trying to destroy Gods creation of all human kind since our beginning. satans fall is coming and he shakes at the mear sight of Father God. Ask God with all your heart and be serious.. to show you more of him and less of this world....he will!