Men of longevity never carried troubles to their beds. It is a well-known fact that Zui-o (Shi-ga)[FN#267] enjoyed robust health at the age of over one hundred years. One day, being asked whether there is any secret of longevity, he replied affirmatively, and said to the questioner: "Keep your mind and body pure for two weeks, abstaining from any sort of impurity, then I shall tell you of the secret." The man did as was prescribed, and came again to be instructed in the secret. Zui-o said: "Now I might tell you, but be cautious to keep yourself pure another week so as to qualify yourself to learn the secret." When that week was over the old man said: "Now I might tell you, but will you be so careful as to keep yourself pure three days more in order to qualify yourself to receive the secret?" The man did as he was ordered, and requested the instruction. Thereupon Zui-o took the man to his private room and softly whispered, with his mouth close to the ear of the man: "Keep the secret I tell you now, even at the cost of your life. It is this-don't be passionate. That is all."[FN#268] [FN#267] This famous old man died in A.D. 1730. [FN#268] Se-ji-hyaku-dan. 12. 'The Five Ranks of Merit.' Thus far we have stated how to train our body and mind according to the general rules and customs established by Zenists. And here we shall describe the different stages of mental uplifting through which the student of Zen has to go. They are technically called 'The Five Ranks of Merit.'[FN#269] The first stage is called the Rank of Turning,[FN#270] in which the student 'turns' his mind from the external objects of sense towards the inner Enlightened Consciousness. He gives up all mean desires and aspires to spiritual elevation. He becomes aware that he is not doomed to be the slave of material things, and strives to conquer over them. Enlightened Consciousness is likened to the King, and it is called the Mind-King, while the student who now turns towards the King is likened to common people. Therefore in this first stage the student is in the rank of common people. [FN#269] Ko-kun-go-i. For further details, see So-to-ni-shi-roku. [FN#268] Ko in Japanese.