The Fool's Scroll

I woke up one day and found that I had completely lost my memory and only had an "Employee Handbook" next to me. The first page of the manual contains a warning in red font: "Understand any rule, and you will be swallowed up by the rules immediately." He must abide by the rules to survive without understanding or thinking about the meaning of the rules. Every morning, his memory is reset, but muscle memory and instinctive reactions are retained - he must train his "body's self" against his "brain's self."