You will fail, and when you do, you must do everything you can to fail as little as possible. Don’t let the failure get its teeth into you. You will make decisions that come with a cost. That is Command.
Broadly speaking, the human brain is a collection of software hacks compiled into a single, somehow-functional unit. Each “feature” was added as a random mutation that solved some specific problem to increase our odds of survival. In short, the human brain is a mess.