C68 Explanation of Poetry to Save Aftershock

I stood up and cupped my fists towards Ninth Master as I said respectfully, "Ninth Master, before I died, I wrote a poem:" Definite water south, Wu Jun hide the corpse, the tomb water north, only found too corrosive. I believe that the think tank that Ninth Master sat in has basically given a general understanding. Let me first tell you my views on this poem. If what I said was wrong