This experiment in quantum physics named the “double slit” experiment shows that mater as perceived by a “normal” human being is not so in “reality.”
Most human beings will perceive matter as “particles.” However, as we can see in this experiment a particle could be a “wave” as well. This paradox has been named the “wave–particle duality.” If you would like to know more about this, please read this wiki article.
By watching this practical video, we can see that everything depends on the observer who is “measuring” what appears to be “reality.”
How is that related with spirituality?
Spirituality had the answer long ago. There is a pre-ordained Drama which moves everything from the quantum level of the electron through a particle. This is something which Science hasn’t quite figure it out.
There is also a “role” which perceives and observes the things happening in the Drama in a particular way. That role is within the Drama.
Observation based on expectation (as in the experiment) is not observing but inferring, thinking.
This is the same phenomena that a human being displays. When we observe life, when we observe our own inner world; we already have an expectation of “what to get out of it.”
If “I” observe “my thoughts,” it is so I can get rid of my wasteful thinking. That is an expectation which will not allow me to observe.
This is why, reality as it is or “truth” could be observed when that “I” is not there, for otherwise; there is thought and with that thinking there is an entity called the “me” manipulating information based on previous experiences.
To understand this principle of duality means to understand the principle of “being and non-being.” A person immersed in spirituality, may want to consider the following points:
1) what “I” observe is not necessarily real.
2) What my logic and reasoning are able to find as “facts,” are not necessarily true.
3) There is a paradoxical quality in very phenomena in life, so if “I” attach myself to a particular belief or concept; “I” will be missing the other side which duality brings. There is the reality of the concept but also the reality of the “no-concept.”
4) As long as there is “I” there cannot be the whole picture. “Truly” observing is not possible.
5) The way we have perceived the world as emphasized by “traditional” physics, mathematics, history and any other source of human knowledge is not truly real, for the “I” has been lingering in that observation. This is what is commonly known as “biased” perception.
6) This is the reason why we should not be attached to a concept or perception of the senses, for it is a half-truth as best.
7) Egolessness is the way to observe without bias.
A drop of water belongs to the Ocean just like a human being to the Drama of life. To feel separated as “me” different from life, means not to see the “reality” of being the same thing at the same time.