I'd say that most of us, if not all, have thoughts of awe and wonder, or see personal significance in certain things or ideas, or consider the transience of life that applies to us all - and all of us have to deal with the implications of that transience as we lose loved ones, or deal with difficult circumstances. As NS says - it's part of our humanity.
In some people those matters may well incline them towards religion or spirituality and perhaps, for them, that provides support or maybe even helps them come to terms with matters - others, like me, haven't drifted towards religion or spirituality even we do share many of thoughts, feelings, experiences and concerns of those that have.