旬
=
勹
+
日
:
Mnemonic symbol: to fast for ten days.
Xu Xian (xu) has been fasting for ten days now (旬). He tries to get by just by absorbing the sun's (日) energy, but as he is sun bathing in the encampment's kitchen ((e)n2) and a fat elephant (勹) walks by he cannot help but bite the elephant's leg.