All matter originates and exists only by virtue of a force which brings the particle of an atom to vibration and holds this most minute solar system of the atom together. We must assume behind this force the existence of a conscious and intelligent mind. This mind is the matrix of all matter. ~ Max Planck
In studying heat radiation, German physicist Max Planck discovered that energy always emits or absorbs in discrete units: quanta. From that he derived a constant that stated a quantum’s energy: Planck’s action quantum. The Planck constant is the energy level of the smallest possible localized coherent energy field.
In essence, Planck’ action quantum defined the minimal limits of existence. Space has a minimum: the Planck length. The temporal equivalent is Planck time: the least duration.
Planck discovered that every phenomenon naturally takes granular form. Quantization is the interface between nonexistent energy and manifest matter. Though energy defines actuality, Nature is made of bits. Continuity has its limits.