Let’s look at the idea of concentration, or samādhi. When you hear those four little syllables, con-cen-tra-tion, what do they imply to you? It may take a few moments to articulate it, but you might immediately feel a particular set of energies starting to take over. You probably get a sense of doing something, working hard at it to get it right. That’s the normal take. We clench up, get tight, and go for it. It’s intensive practice, a ‘concentration’ camp. No slacking! With this kind of thinking, we rev up the controlling systems, the duty systems, the work systems, and the ‘get-it-right’ systems. Right there is stress. A line of tension starts to form across your brow.