The essence of who you are is your spirit, soul, inner being, or life-force.  Spirituality is when you experience a direct connection of your inner most being with the divine power of the universe.

Organized religion is when you follow someone else’s collection of beliefs, customs, and/or rituals.

You can practice spirituality without belonging to a specific religion; you can also be religious but not spiritual; and lastly, you can certainly practice spirituality while belonging to an organized religion.  I recommend doing whatever keeps you aligned with the divine power and on the right path in life.