The most fundamental principle, the basic program of all life, is to save energy. Whatever you do, whatever you like, whatever feels good for you, these are all psychological responses that show you how to be more energy efficient.Life craves energy, and subconsciously you’ll always choose the path of least resistance because of that. That’s why high-calorie food tastes better, why whenever your beliefs are questioned you naturally refuse any arguments, and why people feel more depressed when