Thank you for the reply. I recently have been moving away from the ideas of spirits, demons, and gods (Christianity) and when I discovered Buddhism it clicked with me and I began to feel at peace. I was just surprised that the Theravada practice confirmed spiritual realms, I always thought that was more involved in Mahayana Buddhism.
"A silver bird
flies over the autumn lake.
When it has passed,
the lake's surface does not try
to hold on to the image of the bird."