Quantum Physics
The Wave Structure of Matter (WSM) and Spherical Standing Wave Interactions explains Discrete Energy States of Quantum Physics (Quantum Theory / Quantum Wave Mechanics). A Simple Solution to the Particle / Wave Duality of Light and Matter & Quantum Entanglement

On the one hand the quantum theory of light cannot be considered satisfactory since it defines the energy of a light particle (photon) by the equation E=hf containing the frequency f. Now a purely particle theory contains nothing that enables us to define a frequency; for this reason alone, therefore, we are compelled, in the case of light, to introduce the idea of a particle and that of frequency simultaneously. On the other hand, determination of the stable motion of electrons in the atom introduces integers, and up to this point the only phenomena involving integers in physics were those of interference and of normal modes of vibration. This fact suggested to me the idea that electrons too could not be considered simply as particles, but that frequency (wave properties) must be assigned to them also. (Louis de Broglie, Nobel Prize Speech, Quantum Physics, 1929)

The development during the present century is characterized by two theoretical systems essentially independent of each other: the theory of relativity and the quantum theory. The two systems do not directly contradict each other; but they seem little adapted to fusion into one unified theory.
Experiments on interference made with particle rays have given brilliant proof that the wave character of the phenomena of motion as assumed by the theory do, really, correspond to the facts.
de Broglie conceived an electron revolving about the atomic nucleus as being connected with a hypothetical wave train, and made intelligible to some extent the discrete character of Bohr's 'permitted' paths by the stationary (standing) character of the corresponding waves. (Albert Einstein, On Quantum Mechanics, 1940)

A careful analysis of the process of observation in atomic physics has shown that the subatomic particles have no meaning as isolated entities, but can only be understood as interconnections between the preparation of an experiment and the subsequent measurement. Quantum theory thus reveals a basic oneness of the universe. It shows that we cannot decompose the world into independently existing smallest units. As we penetrate into matter, nature does not show us any isolated ‘basic building blocks’, but rather appears as a complicated web of relations between the various parts of the whole. (Fritjof Capra, The Tao of Physics, On Quantum Theory)

Introduction to Quantum Physics
Quantum Theory / Wave Mechanics

From 1900 to 1930 there was a revolution in the foundations of our understanding of light and matter interactions. In 1900 Planck showed that light energy must be emitted and absorbed in discrete 'quanta' to explain blackbody radiation. Then in 1905 Einstein showed that the energy of light is determined by its frequency, where E=hf. Finally, in the late 1920s, de Broglie and Schrodinger introduced the concept of Standing Waves to explain these discrete frequency and energy states of light and matter (standing waves only exist at discrete frequencies and thus energy states). So it is clear that Waves are central to Quantum Physics and our understanding of the structure and discrete energy states of Matter (which explains why Quantum Theory is also called Quantum Wave Mechanics). As we shall explain, the problems and absurdities of quantum theory have been caused by the continuing assumption of the discrete 'particle' concept for both light and matter, and thus the resulting paradox of the 'Particle / Wave' duality.

As we are dealing with a scientific theory, it is necessary to begin by stating the central Principles of the 'Metaphysics of Space and Motion and the Wave Structure of Matter', which describe how Matter exists in Space as a Spherical Standing Wave and interacts with other Matter in the Space around it. From this foundation we can then deduce the solutions to many problems currently found in Quantum Theory caused by this ancient concept that matter exists as 'particles'.
For example, the obvious solution to the paradox of the particle / wave duality of matter is to realise that the Wave-Center of the Spherical Standing Wave causes the observed 'particle' effects of Matter (see wave diagram below). Likewise, the discrete 'particle' properties of Light (quanta / photons) are caused by Standing Wave interactions which only occur at discrete frequencies and thus energy states.

What we observe as material bodies and forces are nothing but shapes and variations in the structure of space. Particles are just schaumkommen (appearances). The world is given to me only once, not one existing and one perceived. Subject and object are only one. The barrier between them cannot be said to have broken down as a result of recent experience in the physical sciences, for this barrier does not exist. (Erwin Schrodinger, on Quantum Theory)

The notion that all these fragments is separately existent is evidently an illusion, and this illusion cannot do other than lead to endless conflict and confusion. Indeed, the attempt to live according to the notion that the fragments are really separate is, in essence, what has led to the growing series of extremely urgent crises that is confronting us today. Thus, as is now well known, this way of life has brought about pollution, destruction of the balance of nature, over-population, world-wide economic and political disorder and the creation of an overall environment that is neither physically nor mentally healthy for most of the people who live in it. Individually there has developed a widespread feeling of helplessness and despair, in the face of what seems to be an overwhelming mass of disparate social forces, going beyond the control and even the comprehension of the human beings who are caught up in it.
(David Bohm, Wholeness and the Implicate Order, 1980)