It takes some longer than others, but eventually, when you finally realize that things are as they are, and always will be, and that pit leaves your stomach, you can take a deep breath of fresh air, look at the clouds passing in the breeze, the trees, the stars, goldfinches on the thistle, and resume your life. You GET it. That's a good feeling.
Any and all topics may apply here. There is a wide range of scenarios. Why be consumed with a lost cause? Clearing your mind is the best feeling of all.