There are two categories of particles present in this universe one is Fermions and another one is Bosons. Fermions are responsible for making or creating of matter example plant, rock and rubber etc. Bosons is responsible for all four fundamental forces. In classical physics way of seeing universe is very simple, by seeing the past or present of something we can justify what will happen with that object in coming future or what was happened with it in past. By seeing the activities of a human we can predict what will be happened in future with him but in quantum physics the way of seeing universe fully changes.

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In classical physics object is present in the form of wave or particles which describes them but in quantum physics object is not present in particle or wave form, it is combination of both particle and wave form. Particle of quantum physics are present in two states when we are not observing the particles and when we observe them they choose one of the state and at end we get the result, result may be in the form of particle or wave. It is very difficult to predict future or past of quantum particles as we were doing in classical physics. Outcome can be very different from our thinking.

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We all know that everything is made up of matter and where matter is absent nothing is there (empty), now the question arises that empty place is totally empty, let's clear this question with example. When we bring to magnetic poles north and north near the repel but there was empty space present between them then how they repel, they repel because magnetic field are present in empty place. In this whole universe nothing is empty if it is empty then fields are present there.

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In this whole universe fields are present every where which we can't see for example electric field, gravitational field etc. Every field is described by number like electric field is described by vector field because they need numbers as well as direction to describe them.

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