Weird Terrian

*THIS TERRIAN HAD BEEN BROKE BY MYSELF*

I was playing Beta 1.17.0.52 on my mobile phone. Everything is OK. I don't believe my friend that Herobrine is exist. But when I got X=-182, Y=67, Z=-217, there were two crosses on the land nearby. One was bulged out and the other was dented in. The bulged-out one had even grass on top of it. There is a word calls "坟头草" (fen tou cao) in China. It means "grass on the grave". I think it may be unlucky in our culture.