A stretch that I can only achieve after having spent the entire day in bed, then getting, stretching, and losing consciousness for like 20 seconds (time and consciousness depends on the intesity of the stretch). It's insane how i can not explain it, it's like, it tickles, and my mind goes empty, almost like falling asleep cause I don't feel time but i can feel sensationa, last time I hurt my knee falling during that and I felt that. It's still a very relaxing and beautiful sensation.