The Law of Vibration might not be as well known as the Law of Attraction. However, the Law of Vibration serves as the foundation for the Law of Attraction.
To understand this it´s important to know that everything is energy. Science, through Quantum Physics, is showing us that everything in our universe is energy.
When we go down on a sub-atomic level we don´t find matter, but pure energy. Some call this The Unified Field or The Matrix. Others talk about pure potentiality – all being energy.