Life is undiluted. I've always liked this idea! How else would we grow if it was diluted? And who knows what the perfect, diluted situation would be in your life? I think even in a 'perfect' world we'd be waiting for it all to go wrong. Because you can't dilute reality.
We need bad stuff to happen alongside good stuff because how would we appreciate the good stuff if bad stuff didn't occur? It's all a balance and, though it's rreally hard when you're teetering on the edge of it all going wrong, things do change and get better.
Everything we do reacts with something else. My mind has to react with my hand to write this!