Samsara and States of Being (reference request)

One book I like very much is *The Myth Of Freedom* by Chogyam Trungpa. Of particular interest is the section where he distinguishes the realms of existence as mental states and ways of being. I've yet to find this discussed elsewhere in any way that resonates. Everything I find merely talks about *Buddhism and psychology* and speaks about it in terms defined in the latter. Trungpa nourishes the metaphor and *generates a rich unanswerable question*. Other writings I've found prey on the metaphor and *regurgitate a definitive answer*. The former offers opening for insight; the latter suppresses thought. Does anyone know of anywhere else this subject is written upon with the type of creativity I've alluded to?