Minecraft wiki entry for End_survival, associated text: Once a base of this sort has been set up, and the player has a sufficient amount of ender pearls to teleport through the gateway, they can take a break from the battle at any time. The player can respawn the ender dragon—only this time, if the player has been sufficiently damaged, rather than dying they are able to teleport to the outpost to eat, recover, and—if they wish—brew potions and acquire new building materials as needed. The player can then teleport back through the gateway to return to battle the Ender Dragon at full health (see "pros" of living in the end for a list of all the renewable resources, combat gear and food the player can bring with them into the End).