What is spirituality?

PQ,

As a one liner ....

Spirituality is a state of mind or being involving transcendence of the "self".

Tradititional reductionist science tends to claim that such a state is illusory, but
recent developments like Quantum Mechanics have raised sufficient ontological questions about the status of "observers" to encourage some of their number to support concepts like "holistic consciousness".

concerned with matters of spirit ?

Do you think that is a 'way forward' in that case? Are we waiting for more 'evidence.'

Be nice and define all that.

What is Quantum Mechanics without capital letters?
What is ontological?
What is holistic?

QM...an established model in subatomic physics where the act of observation affects the observed phenomena such that "objective reality" becomes problematic.

Ontology...philosophy of of "existence" or "being" or "reality".

Holistic...single unified totallity...as in the idea of "holistic consciousness" where all consciousness is part of the same entity or force which permeates all aspects of "reality". (David Bohm the physicist was an example of one such advocate)

PQ,

"Forward" implies we specify a preferred direction. What is happening is a limited number of "paradigm shifts" in attitudes to "knowledge", one of which has taken an ecological route which follows holistic principles. (see Capra "The Web of Life"). The ecology movement, together with Bohm's exhortations for us to engage in "critical dialogue" does give support for some aspects of "spirituality" but politics has tended to muddy the waters.