In "when i die," the speaker wrestles with what happens after death and finds no answers, only more questions. They even point this out themselves: the first stanzas are all questions, and the speaker admits they'll "find out soon." That casual phrasing makes the fear feel close and real rather than abstract.
What hurts most is the idea of losing the world. The speaker names small, ordinary joys, like sunsets and running in the dark with friends, and then asks how everything can keep going without them. Seeing the world only through their own eyes makes it feel like a private place, so the thought of clocks still turning and the Earth still spinning feels unfair.
The mood is anxious and wondering, but it ends quietly. The speaker decides to wait and live the life they've been given. The last line admits that it's sometimes hard not to throw it all away, which hints at a darker struggle beneath the curiosity.