Acman3, you really tied it together. Trane was on a spiritual journey that he was beginning to express through his music. I believe Alice Coltrane, his wife, exemplified the destination Trane was trying to reach. Her music is filled with Trane's spirituality just before he died. Here we can hear it:
http://www.youtube.com/watch?v=L2HwbFLh5j0
Since leaving the music we've been into, and going to Alice Coltrane is like stepping out of hot water, and then getting into cold; you have to listen to more music in that groove in order to absorb it.
http://www.youtube.com/watch?v=smisXZ7KVpo
Like it or not Rok, this is where Trane was headed, he took some way out trips on live sets; that's where he played music that was totally unfamiliar to fans of the "old Trane", that music was a preview of things to come.
Enjoy the music.