It's not his spirit that's doing it, it is the same person that the disciples spoke to when they walked the streets of Palestine, it is the same person that went around healing the sick, it is the same person that was born in the, in the manger at Bethlehem, he is now, after having died, been raised again by the power of the trying God had, he is now ascended back into heaven, in glorified form, and he is there interceding, representing you and me before his father there in heaven.