Brief and simplified suggestion to complement the following research Researchers Exchange Messages with Dreamers | The Scientist Magazine® (the-scientist.com). And all related explorations:
As had inspired, encouraged, and urged in diverse ways in past discernments, integrated, extrapolated, interpolated, and correlated empirical data (much empirical data existed from non-mainstream science and naturalness-spiritual global communities) from extra ordinary senses, dream states, OBE, NDE, and diverse spiritual realms experience would be empirical base far beyond any doubt for the existence of many sentient composite body-mind system's subtle body-mind (or real self) or emerging spirit-soul potentialities of possibilities.
And thus, would help justify, inspire, encourage, and gather global support, funding, resources, and priorities to further expand and advance the scientific quests in the known physical world. And beyond.
Epistemology of Life and Ontology of Existence Foundation and Institute