Not everything is going to stay in place. Not everything is going to stay perfect. You may try really hard at something, making details finer and sometimes, it doesn’t work out well despite your efforts. Sometimes, things are not in your control and that is perfectly fine.
Every balloon you stuck on the wall may either stay or may fall. But that shouldn’t worry you. Because, you tried your best and if it still comes off, it isn’t your fault. At the very least, all you can do is enjoy every balloon fall down gracefully, instead of frowning and forcing it to stay onto the wall.
My example of balloons on the wall may not be the best and most intellectual one. But, the idea of being at ease when things aren’t under your control stays in utmost simplicity.