According to the most well tested theory in physics, Quantum Mechanics, your consciousness changes reality. In this theory, the phenomenon known as Collapse of the Quantum Wave Function is what brings reality into existence. This is a fancy way of saying that one’s conscious observation of small unseen waves actually causes those waves to “collapse” into matter. In other words, conscious observation materializes particles into existence. 

Quantum law –

“The very act of us watching an electron changes the way it behaves in our presence. What’s more, the longer we look, the more it changes. We not only play a role in the creation of our everyday world, but we play the prime role in what could be called a “participatory universe.” It is impossible to simply watch.”

– Quantum physicist, John Wheeler –

Gregg Braden  wrote: “When we translate our deepest beliefs into the reality of our world, we are literally re-writing the code that makes the universe appear as it does. We are not passive observers. Consciousness itself is responsible for the existence of the universe. We are all creating the events of our lives, as well as the experiencers of what we create. Building a creation that is ever changing and never ending.”

So in essence, we are not truly “real”. We can only exist as living awareness moving in a constant “now”. Solid matter is only an illusion to living consciousness. It is simply a collection of varied vibrations moving so fast or slow that it appears to be solid.

– Bashar –

When we look at our own body and at other physical objects, we presume that there is really “something” substantial and tangible “out there” in our visual and tactile fields. But at a level subtler than that which our “normal,” habitual mode of sensation and perception is capable of monitoring, there is only the insubstantial, intangible no-thingness of pure energy (which sounds very similar to consciousness in its properties) and its incessantly-changing transforming into, and back out of, fleeting “material” forms.

– Jed McKenna –

“The world you perceive is made of consciousness; 
what you call matter is consciousness itself.”
– Nisargadatta Maharaj –