The world is your function, what you put in you get out. It’s really not that hard, life has a feedback loop. If you require vast machinery and the comforts of life to be happy, you will be unsatisfied. If instead merely observing a bug crawling on a rock, or a hawk perched in a tree, gives you hope for the future and joy for living now, you will be a beacon of light.
Traveling the world has a similar operation. Many people travel with so much comfort that a full adventure is not experienced. At the end of your time, your experiences will be the only thing you have, so why make it too comfortable? Too easy and life is not worthwhile. Challenge breeds character.