Consistency is a form of craziness because you have to show up every day and repeat the same action no matter what happens, and irrespective of how things change.
You have a severe back pain? You catch the flu? You have high fever? You have a sharp pain in your right leg? There is the storm? You cannot breathe properly? Heavy snowfall and -25 C? The world is on fire?
It doesn't matter -you have to do it.
If that didn't convince you, maybe this will:
Consistency is the propensity to ignore external reality in order to repeat an internal fantasy, that no one else cares about -except you.
