If they believe everyone has a right to be happy, no matter what they look like or sound like or where they live, if they realize no one holds all the answers and that life is a bit of a journey, if they embrace others from a sense of compassion and tolerance
and they try, hard, to find a happy middle ground in all things
then -- to me -- they are pretty rock solid
the ones who need to "tell me" how evolved they are, yet feel equally pre-disposed to point fingers at those who are "doing it wrong" . . . well they typically are not quite as "plugged in" as they think
we're in this together and that, to me, is the foundation for spirituality