Plato 2003, questioning reality, asks: "Are we really for real?"
There has been a lot of discussion on this topic, some of it quite good. At this point I'd like to attempt a definitive answer to Plato's question. (^__^)
{This discussion that follows assumes a background in Formal Axiology, for this reason:
Since "reality" has some value, it helps to have a logical system explaining values to shed light on the subject. Formal Axiology (value science) does just that. It derives three basic positive, integral dimensions of value. They are designated S, E, and I. These are abbreviations for Systemic Value; Extrinsic Value; and Intrinsic Value. The system also derives -- by use of its 'value calculus' -- Transpositions of value. (These are mere fractions of value, worth little.)
The integral dimensions form a hierarchy, with S-value worth the least; E-value worth more; and I-value worth the most.}
In order to answer your question, Plato, we shall construct a miniature
Ontology. Employing the dimensions mentioned above to measure and define new values, we arrive at -- when we apply them to the (undefined) primitive term:
substance -- various degrees of substance, [Modes of Being], as follows:
Transpositional value: Ephemerality.
Systemic value: Essence.
Extrinsic value: Existence.
Intrinsic value: Reality.
As to their modes of subsistence: Ephemeralities desist.
Essences consist.
Existents exist.
Realities persist.
You ask "What is reality?" I have defined it as: Intrinsic-Being.
It is a high degree of subsistence, worth aleph-one (if the Continuum Hypothesis is accepted, as is reasonable to do, this cardinality is known as 'the power of the continuum.'
In other words, Reality provides one with a treasure of value, an uncountably infinite amount of value. Conclusion: don't fight it, accept reality. Face it. You'll be glad you did.
Out of an undefferentiated universe we each carve out some properties which we designate as "real." When you call yourself, or anything else, "real" what you are doing is Intrinsically valuing it. You are calling it special to you. You are saying: "I'm going to give this my attention. I am going to give this a certain amount of focus!"
So, are you real? My answer is: If you say so. All valuation is subjective (to the valuer); and it is objective when analyzed by a value scientist, pure or applied. When a formula about values is put on the blackboard that makes it somewhat 'objective.'
You are as real as you want to be. Assert your own reality -- which is far better than merely to exist. To exist is infinitely better than merely to be an essence on paper -- a construct in someone's mind. Essences are posited, stipulated. Things in this world, including human bodies, exist. But you, as a person, are really real! Enjoy it!
To learn more about Formal Axiology go to this link and read some of the Articles, especially the papers by Dr. Robert S. Hartman:
http://www.hartmaninstitute.org/html/Research_topics.htm