It’s as if you see the world through dark glasses, so naturally everything seems dark. But if that is the case, instead of lamenting about the world’s darkness, you could just remove the glasses.
That’s what it means to live in your subjective world. There is no escape from your own subjectivity. At present, the world seems complicated and mysterious to you, but if you change, the world will appear more simple. The issue is not about how the world is, but about how you are.