I've always wondered why the Eight Precepts of the Pig carry nails and palladium?

"I've always wondered why the Eight Precepts of the Pig carry the nail palladium ,......" "I don't understand this, for the sake of hoeing the ground." "But he is not a farmer, what kind of land he wants to hoe, but he is the canopy marshal in charge of the Tianhe." "What you said makes a lot of sense, so why did he carry the nail palladium?" "Later, after I became a water pipe manager in the water conservancy department, I understood that the nail palladium is the hook of the water pipeman, which is used to hook the debris in the water and ensure the smooth flow of water." "I understand when you say this, the Eight Precepts of the Pig are the grandfathers of the water stewards."