What can you learn and achieve after a few months or years of closed doors?
The key is what to fix. From the Taoist point of view, it will take three months to get through to Xiao Sunday. If you practice on Sunday, you can practice kung fu and kill with one blow, and live in seclusion for ten years; As far as Buddhism is concerned, it usually takes three years to start, and meditation is also quite magical. At least we can cultivate into a celestial eye and open our third eye.