In my article What is Rhythm? I highlight that one of the most important skills for finding good racing performance is being able to read the race circuit effectively. In that article, I describe the race circuit as sheet of music a racer must read to find their rhythm. The racing lines and the way the bike is ridden is an expression of how the circuit has been read by the racer. This depends on perception - how we get to know our world through our senses.
I think that not reading the circuit well is one of the biggest limiting factors to a racer's performance, both in lap times and in their available mental capacity. On the other hand, the best and most successful racers develop very good patterns of circuit reading and they know that this is the foundation of their performance.