A couple of months ago a friend of mine showed me meditation. I don’t know if it was Zen, Transcendental, etc. I just focus on my breathing and try and reach a point where I think no thoughts. I notice when I reach a state around no thoughts, warm good feelings come out of my temples and surround my head in a crown kind of thing. Then these feelings shoot down my spine. It’s a very euphoric feeling. While this is happening my body starts twitching but it all feels good so I don’t worry about it. Does anyone else experience this or know if this is common? Thanks.