Chinese woodcut, eating linseed in autumn counteracts dryness

The image shows a distinguished gentleman, seated before a painted screen, flanked by two attendants. In the foreground stands a farmer, holding a flax (linseed) plant. The gentleman is expounding the health-giving virtues of eating linseed in the autumn. Autumn is a particularly dry season, but eating the right amount of linseed is supposed to restore moisture to the body and counteract the harm caused by climatic dryness.

Shenxian fushi (Diet of the Immortals)