I would think that if you are going for a mystical experience you should probably be in a good headspace to begin with. Most people probably don't get that far on meditation unless they are devoted to it. Someone on here mentioned brainwave entertainment. I have tried that and really liked it.
Brainwave Entrainment - POWERFUL Serotonin And Endorphin Release Deep Sedative Effect - YouTube
Mostly I just like to fall asleep to a good Moody Blues album.
Glad you are back and your teeth are not hurting you. That really sucks doesn't it. It is so nice to have it all fixed.