Congratulations on your encounter with Qi Crystal and Qi Box. Aqive Technology looks forward to working with you to create a rich feeling and experience of the journey If you are a "meridian-sensitive" constitution when exposed to the "Qi Crystal" or "Qi Box", there will be heat, hemp, temperature, vibration, microcurrent, or other feelings, and feeling is normal, everyone's feelings will be different. According to Professor Li Sichun's experimental statistics, about 15%~20% of people are meridian-sensitive constitutions.