Shalabh singh

I feel it daily. In my case it starts easily at the fingertips and I can move the sensation at will I make it dance to and fro and somehow I can make it move upto my elbow after that it becomes faint... I use it while doing shavasana after doing yogasana and I feel so much relaxation . It feels amazing .. It is as real as anything.. it should not psychological.. my friend can also do that.