From the mathematical properties of frequencies to the emotional effects of music, sound can be the golden key that open our minds to new realities previously closed to us. To understand how sound affects consciousness, we need to understand how our brain reacts, with resonance, to various audible and electromagnetic frequencies. This is something long understood by shamans and is being confirmed by scientific studies. Our team of mind explorers discuss the importance of sound in the set and setting of psychedelic experiences to deepen and enhance states of mind.