There is a famous line from the movie Dodgeball where in their first training, the coach says to the team of ragtags, “If you can dodge a wrench, you can dodge a ball.” He then begins to throw wrenches at the team, with a number of them getting hit by the tool.
The scene is nonsensical and hilarious, but it has some truth to it.
If you’re trying to accomplish something, why not train on hard mode?
Why not make our training harder than the task will be? By putting ourselves under pressure before the event, we give ourselves breathing room to better deal with the nerves, adrenaline, or things that could go wrong on the day.