Topic on discussion of heavenly truth in ancient times in the plain questions (First article part VII) [1]

There were supreme men in the middle ancient times that possessed up?right virtues and skilled health care. They adapted themselves to changes of yin, yang and four seasons. Staying above the secular world, they accumulated the essences and protected the spirits. Their thoughts roamed between the heaven and earth, and their watching and listening reached the eight directions. Because of this they prolonged their lives and strengthened their bodies following the genuine men.