have you ever wondered who placed the ender crystals in the end?It was the Ender iluminati, it is they who control the End, they placed the ender crystals so their key to controlling the endermen wont be destroyed by those pesky players, yes the Ender dragon....with out it they lose all control over the endermen.why do you think endermen steal blocks?to bring it back to their masters of course.....It is said that they Ender iluminati have harvested the power of the End mainly teleporting....and controlling endermen to do their will......