The real problem is that concentration alone will not give you a perspective on yourself. It won’t throw light on the basic problems of selfishness and the nature of suffering. It can be used to dig down into deep psychological states. But even then, the forces of egotism won’t be understood. Only mindfulness can do that. If mindfulness is not there to look into the lens and see what has been uncovered, then it is all for nothing. Only mindfulness understands. Only mindfulness brings wisdom. Concentration has other limitations, too.
