If you are talking about "the spirit in practice", then you can practice the eight-character sutra that is best for David.
This spell contains three voices of "A Yi", which are the voices of arhats and can improve the spirit. Now some Taoist priests also use arhat sound to cultivate and improve their spirits.
Tian Wen
Hmm. A Roveyou Zorro.
Read the Bodhisattva Manjusri Bodhisattva 108 times every day, and then hold the eight-character master Dawei mantra at least 1080 times or even 5000 times.
If you are talking about "the essence of Chinese medicine", you can practice the pharmacist's mantra ... but I sincerely suggest that if you want to improve this essence, you should go directly to Chinese medicine to recuperate your body and ensure that you fall asleep before 1 1 every night, so that the essence can be improved quickly.