The Holy Spirit is Jesus in spirit form, He is not a substitute. The trinity is a concept we have a difficult time understanding. The Father, Son, and Holy Spirit are one but still maintain individual identities. Although not with us in physical form, Jesus can be with us in the Spirit. His presence is not a feeling that you might get when you hear an emotional worship song. It’s much more than that. His Spirit is a comforter and a guide. It is truth. He teaches and directs us regardless of our feelings.