Hi there, I believe it is smth very intimate and person. Still, there is no universally agreed upon definition for what constitutes feeling spiritual. However, most sources agree that for a person to feel spiritual, they must believe in something that is bigger than themselves. For some deep look check out spirituality definition myallamericanhospice.com/spirituality-can-improve-quality-life/ Hope it will make sense for you
It simply means spending time with yourself and knowing the actual self. There is no clear definition of spirituality, as I believe. Everyone finds his/her own meaning to it because it is not about any known God or religion. It is about soul, the spirit, one that is unique to every living being.
You can only be spiritual when you know yourself. And knowing your spirit is a very long journey