I think the landlord's understanding seems to have fallen into a misunderstanding. This Zen poem combines the images of flowing water and flowing clouds, and there is no essential difference between them here. If there is a difference, it is the appearance, which is as tender as water, and water can change into various forms and flow freely; Clouds are suspended in the air and are made up of water droplets and ice crystals. It is uncertain, so the old saying "clouds follow dragons" just can't see its head. Literally speaking, walking while watching the water can appreciate the philosophy of the deceased, and sitting and watching the clouds can realize that "the clouds are unintentional." You can't walk and watch the clouds (it's still), but sitting and watching the water (it's flowing) will disturb your mind, right?