What does crying obsidian do in Minecraft?
In Minecraft obsidian can represent the end of the world. Characters may see an irregular lumpy “crystal” and get excited, but upon inspection sees it is really a batch of translucent obsidian ravines, suggesting that they have reached bedrock and thus the End.
Specifics are unclear because Minecraft uses such vague descriptions which often leave readers guessing at what the creator’s intention was. But most likely when players think they have reached bedrock (The End), this means their character has just entered a huge mass of obsidian which now blocks further progress in that direction; so instead they must turn around and head back out by going to wherever their last door exit was). This leads these players to believe all raids on Minecraft by other people are all just obsidian doors in the sides of mountains or under huge masses of water.