So I keep hearing people ask "if your ghost can bring you back from the dead, couldn't he just keep doing that? How did the traveler die?" Saying its a plot hole in game mechanics... It isn't, here's why. In I believe your first moon mission you discover a guardians remains. "But shouldn't he be able to be brought back to life?" You may ask... Shut up. No, he couldn't. The ghost can only bring back those who retain light. Take notice that when you die in a mission it says "darkness has consumed you," or something of the like. Once your light is extinguished, you die. Light equals life and darkness equals death. I do not understand why people can't make sense of this, no light, no life; the ghost can't bring you back to life. Obviously in the game this is ignored, but you still get the sense of being defeated, no one wants to play a game where you die and have to start over from scratch! Well... Sadist do... But the majority of people want to advance what they've started so hard to build, so this the mechanic is ignored. Your character is resurrected because (s)he retains light, so the ghost can bring you back from the dead. If you notice there are TONS of human corpses about, yet you're chosen, because you're special, you have light, the others either never had it, or lost it. Idk how else to explain it with going further in circles, point being, shut up, it makes sense, you just have to pay attention to detail.