Lying in the sun is a way of keeping in good health in Taoism, which is said not to cause insomnia. Taoism advocates inaction, believing that things have their inherent laws of development, and what people have to do is to conform to him and not interfere, that is, to govern by doing nothing. When we are lying in the sun, we should first establish such a world view, so as to achieve the true Tao and nature. If there is really no way to overcome insomnia consciously, you can use Qin Fang's Shumian Soup, which is similar to Taoism in concept and is also the pursuit of nature.