Help me understand John Coltrane .... seriously.

You don't get the song "My Favorite Things"?

Yes those are more accessible Coltrane albums as is even Giant Steps and Blue Train but these alone are limited as a tool to "get" John Coltrane.

Limited yes, but his more accessible albums are a good starting point simply because you begin to understand his talent, his genius. Others albums, as you've mentioned, include "Love Supreme", Blue Train", and "Giant Steps". 

IMO a lot of folks just getting into Jazz stumble when listening to the more free-form variety. Melody is key for many. 

Erik:

When you figure it out please explain it to this guy...

https://www.youtube.com/watch?v=SfhYgBwcVVQ

DeKay

Music is a feeling inside the soul.

 If a tune isn't grabbing your attention emotionally, without questioning  "why" you  should Ilike it...
it isn't for you.

Other than maybe reading a bit of history of Classical, Jazz and Blues, it's a matter of something latching on inside.

Also, a read  on a particular musician especially Classical and Jazz, helps me understand where they may be coming from.

No graphs,tweaks,cable,fuses,tubes....

Listen to A Love Supreme! Maybe the pinnacle of spiritual Jazz!