Each tuning fork in this set carries a specific frequency mission to help you harmonize your body and mind at different levels: 128Hz — connect to the earth and relax deeply In rhythm therapy, 128Hz is called the "Earth Fundamental Frequency" or "Cosmic Frequency". It is believed to help individuals connect with natural energy, promote deep physical relaxation and mental tranquility, and is very suitable as a guide to start meditation, bringing stability and peace to the mind. 136.1Hz — Standard calibration, smooth transition This frequency is a finely tuned version of the standard pitch and is often used as a reference for calibrating other sound tools. For practitioners, it can help stabilize emotions and clear thinking. It is a bridge that connects different frequencies and achieves smooth energy transition. It is especially suitable for beginners to develop a keen perception of vibration. 256Hz — Classical scientific pitch, relieve stress 256Hz is the "scientific pitch" in classical music. In Chinese medicine theory, this frequency corresponds to the "Liver Meridian" and is considered to help relieve depression, relieve daily anxiety and mental stress, and bring emotional balance and relief. 384Hz — harmonious sound, purifying space 384Hz is a "harmonic frequency". Its vibrations help purify the personal energy field and the surrounding space, bringing a renewed feeling. Many people like to use it before and after meditation or when cleaning the room, as a "sound cleaning ritual" that enhances the overall atmosphere.