Spirituality and Religion are not quite the same thing.
Even hearing Angels is not necessarily very religious (and of course, we may hear a lot of things with chemical help ...).
Spirituality is a personal, intellectual, possibly experiential thing.
Religion often entails cultural overhead, community, and generally a lot of work: those who have had the opportunity to 'see angels' have the responsibility of then promoting their new understanding in the world, living as examples to others yada yada, i.e. it's mostly hard work and heavy cross-bearing, i.e. 1% inspiration (seeing angels) and 99% perspiration (being a good person, which is hard).
Even hearing Angels is not necessarily very religious (and of course, we may hear a lot of things with chemical help ...).
Spirituality is a personal, intellectual, possibly experiential thing.
Religion often entails cultural overhead, community, and generally a lot of work: those who have had the opportunity to 'see angels' have the responsibility of then promoting their new understanding in the world, living as examples to others yada yada, i.e. it's mostly hard work and heavy cross-bearing, i.e. 1% inspiration (seeing angels) and 99% perspiration (being a good person, which is hard).