Getting Close?

[Chase]

Last night I went to bed with the intent of going OOB just as I have in the past week and a half that I started trying. I lay down thinking that I'll sleep for an hour then wake up and attempt to go OOB (Normally I've been trying to go straight from being awake). I'm in a comfortable position while laying on my back, legs straight (Cat sitting across calves), with my arms and palms facing up at about a 45 degree angle from my body. Roughly 10 minutes in with my eyes closed I start to feel a tingling sensation that starts in my upper back which shoots out in a firework pattern and descends along my body down to my feet. I only started noticing this about a week ago after getting interested in OOBE while I lay down. This sensation becomes regular about every 10 seconds and it happens around 10 times. Suddenly like a switch the darkness behind my eyelids become richer. My eyelids start to spas/twitch rapidly and my heart beat becomes faster and noticibly stronger. At this point I start to feel my body sink into the bed and I try to "roll out" but BAM just like that it all stops and returns to normal I know I was close but I guess I tried to get out early? Also does anyone else feel that 'fireworks-like' tingling sensation?

[Astralsuzy]

I do not think you tried to get out early.  From my experiences if I leave it too late, it does not work.  I can get strange sensations.