Imagine this strange condition

[kghayesh]

Suppose that one day you got up in the morning and went to have your daily practice session. Then, when you sat on the piano and started playing the pieces you are practicing, you found out that u have no idea how it was to be played , that u have suddenly forgotten everything. Then, you turn to playing some scales to make sure u still can play the piano, and to your surprise, you stumble after each finger turn !!!!

I don't know why but many times i feel that someday that could happen to me.... Do anybody have the same fear??

[Bob]

Nope.



But I have forgotten that I can play the piano.  When I'm really, really tired I forget things like that -- but it's just information.  I think "Man, I wish I could do that."  Then I remember I can.    Then I know it's time to get some sleep.

[thalbergmad]

Somtimes the opposite happens to me. One evening i started to play a piece that i had been struggling with and then suddenly i realised i had played the entire thing the whole way through without error.

I often play at my best when i am too tired to think.

[quantum]

I often play at my best when i am too tired to think.

Sometimes happens to me to.  So in order for our brains to think properly to play, we have to be too tired to think in order that we don't think to coax our brains to think better.   
Sounds cryptic.