Delta wave, I also practice meditation and it has nothing to do with BK or any religion. I always recommend it to ex Jehovah's Witnesses as many of them are dealing with the stress of shunning and the effects of being in a high control religion and meditation is good for dealing with stress and negative emotions.
Unfortunately, manyJWs are afraid to meditate as the Watchtower has emphasized it's use in religious practice. I don't know what they teach currently, but they even used to teach that it could lead to demonic attack, which is ludicrous. I am glad you aren't buying into that and I welcome you to the forum.