I'd say that a good exercise you could try in order to connect these two ideas is getting (or writing) a short script or story. These pieces sound like diferent "adventures" or experiences of the same character, so you could benefit by trying to apply them into a short drama.
Take a poem, a fable, a video game, whatever inspires you and make it into a tiny (or any size you want) soundtrack. It doesn't have to be literal, and people don't have to realise what you've done, it only matters that it helps you in the process of connecting all those ideas.
First 20 seconds sounds like a character exploring a jungle or something, while september 26 sounds like a big challenge or a some sort of boss fight. Thinking about those possibilities might help you organize what each idea means/feels like, and then should help you assemble them into one final song.
You get the idea.
I hope it was of any help!
Best wishes, Jean.