While at first it seems that you have no purpose in the unrelenting, brutality of the husk of a fallen civilization called "Rain World", this causes many players to drop the game entirely (including myself) but if you will yourself to come and finish it off, you will come to realize that the purpose isn't to defeat a final boss or free someone from a dungeon, but that the purpose is to simply survive and explore Rain Worlds captivating environment. Only then can you truly get lost.