Ghosthouse, more abstract jazz is not for the casual listener, but those who can go into another zone with the musician. As a rule those albums don't sell well, but musicians make them for artistic sake, or their own soul satisfaction.
For example, "Search For The New Land", could easily be set to choreography; you can even visualize movement as they search for a new life, which is the deeper meaning.
lee Morgan was not a mental lightweight, and the even more abstract music he made with Grachan Moncur III was an indication of his deeper search in his music; in this case Grachan Moncur's music.
Grachan Moncur's "Evolution" is for those who listen intently, and become involved in the music, the lineup gives an indication of this: Grachan Moncur III (trombone); Jackie McLean (alto saxophone); Lee Morgan (trumpet); Bobby Hutcherson (vibraphone); Bob Cranshaw (bass); Tony Williams (drums).
Enjoy the music.