Brain waves during different times of a Bipolar disorder

I have been diagnosed with the Bipolar disorder about 6 years ago, and you know how the internet is full of things that doesn't always tell the truth, so I want to get somethings cleared up.  I only have the hyperactive and maniac sides of the bipolar disorder (the depressive side rarely appears), what are the most likely brain waves associated with this? Also I read that if you are having a spiritual experience you tend to have more theta waves, (is that nonsense?). If not how does this apply to this situaltion (I tend to get really spiritual when I get an episode).  Though just to clarify things I am on my medications and have not had an episode in about 3 years, I just want more information to clarify things.
Thank you in advance...