Literature Reference: 身觉浮云无所著，心同止水有何情。—— 《荅元八郎中杨十二博士》 The body feels like a cloud with nothing to cling to, the heart is like still water, without any emotion. Source from 'Reply to Yuan Ba Langzhong and Yang Shi Er Doctor' by Bai Juyi.
止: Surname, standing still.
水: Rivers, streams, lakes, and seas collectively. It metaphorically signifies that when conditions are ripe, tasks will be accomplished smoothly.
Meaning: Still water symbolizes a calm and undisturbed mind, unmoved by external influences.