There are many sources of spirituality; religion may be the most common, but it is by no means the only. Anything that generates a sense of awe may be a source of spirituality. Science does this in spades.
A Hubble Space Telescope photograph of the universe evokes far more awe for creation than light streaming through a stained glass window in a cathedral.
Being a skeptic just means being rational and empirical: thinking and seeing before believing.
Being deeply knowledgeable on one subject narrows one's focus and increases confidence, but it also blurs dissenting views until they are no longer visible, thereby transforming data collection into bias confirmation and morphing self-deception into self-assurance.
Either the soul survives death or it does not, and there is no scientific evidence that it does.
When alien abductees recount to me their stories, I do not deny that they had a real experience.