I never knew that God actually had three heads!
Father is Spirit
Son is Spirit, became flesh at incarnation
Holy Spirit is Spirit
Behold my hands and my feet, that it is I myself: handle me, and see; for (a spirit hath not flesh and bones), as ye see me have. (Luke 24:39)
Three heads, what does a head consist of? Flesh and Bones!
I have been around for quite a while and can assure that Unity and bonding is Greater in Spirit then it is in the Flesh. As to why flesh and blood is discussed here in regards to the Godhead remains unknown. As Jesus was accused of having a devil, sadly this continues even as of today.
Romans 8:5 - For they that are after the flesh do mind the things of the flesh; but they that are after the Spirit the things of the Spirit.
God Bless!