The meaning of spirituality is relating to or affecting the human spirit or soul as opposed o material or spiritual things.
My take on this is having a deep connection to the natural world and deep respect for all beings. By having a sense of connection to something greater than oneself, seeking purpose, and exploring inner life beyond the purely physical, often involving deep feelings, beliefs, or experiences of the sacred, divine, or interconnectedness, distinct from (but sometimes intertwined with) specific religious doctrines