Yes, very important to achieve calm and restfulness. Very useful to combine with NLP-style imagery just before race. I visualize race beforehand, the tenseness and anticipation while lined up waiting for starter's green-flag... tick... tock... tick... tock...
<BANG!!!> and we're off, feeling tank popping up and hitting me in chest... feathering rear-brake slightly to bring it down...
Imagine flying towards turn-1 at warp-speed,
how can 250 go so fast!!!... almost no room left before having to slam on brakes... elbowing guy on left... then on right.... found hole on outside! yeah!
I play through all possible scenarios in my head. Rewind video... repeat with slight variation, rewind... turn in little later on turn 14... rewind... pass guy on outside ... rewind... try it on inside.... got him!!!
Then when things happen on-track, it doesn't catch me by surprise... I've already done in thousands of time already...