"Secrets of Cymatics" is an inspirational presentation by acoustic-physics researcher, John Stuart Reid, filmed at the Water Conference, Sofia, Bulgaria, October 2016, on the physics, chemistry and biology of water. The title of the talk was originally "The Holographic Properties of Water" and focuses on the CymaScope instrument and the emergent science of Cymatics, including significant implications for medical science and positing the first two laws of Cymatics.