Before describing this life I must explain why it is necessary. Why should not one always be in the world? Why the need for retirement at the latter part of life? This retirement is only too necessary. In the first place the man has given up all his life, all his time, all his energy, to the study of worldly things; secondly he has done all this in the interest of his family or perhaps for many people around him. It is right that he should some day have a rest. We ourselves feel justified in resting when Saturday comes, so why should he not have his Sunday after working all his life a life that has been nothing but continual conflict every moment, proving him to be wise and kind and gentle, true, honest, and virtuous through it all? His patience and virtue have been tested through all the temptations to which he was exposed, through all of life's difficulties, dangers, humiliations, and responsibilities that had to be faced. This man is surely justified, on reaching the fourth stage of life, in having a little peace, with no more worries or responsibilities of business or profession or even of his family. The world should leave him alone to think and meditate and let his muscles, bones, body, and mind be at rest. All this is natural.