And we don't know how we got into this mad situation

I can feel it - a seed of doubt that is growing inside my head, poisoning every positive thought I have. There are just so many things to worry about. Too many things. I keep trying to rationalise it all; I keep trying to put sense and reason to every single piece of this puzzle. Yet I keep coming back to the point where it started, the point where there was no sense and no reason at all. It's too late to fight it though, right? So can I just take it that sometimes, there just isn't any need to have sense and reason?