“Compared to the reality of everyday life, other realities appear as finite provinces of meaning, enclaves within the paramount reality marked by circumscribed meanings and modes of experience.”

Chap. 2 : Experience and Its Modes
Experience and Its Modes (1933)

Genetic Epistemology (1968) http://www.marxists.org/reference/subject/philosophy/works/fr/piaget.htm – First lecture
Context: Knowing reality means constructing systems of transformations that correspond, more or less adequately, to reality. They are more or less isomorphic to transformations of reality. The transformational structures of which knowledge consists are not copies of the transformations in reality; they are simply possible isomorphic models among which experience can enable us to choose. Knowledge, then, is a system of transformations that become progressively adequate.

Pt. 1, Ch. 4
Sentimental Education (1869)
Context: Don't talk to me about your hideous reality! What does it mean — reality? Some see things black, others blue — the multitude sees them brute-fashion. There is nothing less natural than Michael Angelo; there is nothing more powerful! The anxiety about eternal truth is a mark of contemporary baseness; and art will become, if things go on in that way, a sort of poor joke as much below religion as it is below poetry, and as much below politics as it is below business. You will never reach its end — yes, its end! — which is to cause within us an impersonal exaltation, with petty works, in spite of all your finished execution.

Source: The Empty Space: A Book About the Theatre: Deadly, Holy, Rough, Immediate

Source: Survivor

Source: Dynamics Of Theology, Chapter Seven, The Symbolic Structure of Religion, p. 133

p, 125
Number: The Language of Science (1930)

Source: When Women Were Birds: Fifty-four Variations on Voice

Foreword http://www.psychedelic-library.org/childf.htm
LSD : My Problem Child (1980)
Context: There are experiences that most of us are hesitant to speak about, because they do not conform to everyday reality and defy rational explanation. These are not particular external occurrences, but rather events of our inner lives, which are generally dismissed as figments of the imagination and barred from our memory. Suddenly, the familiar view of our surroundings is transformed in a strange, delightful, or alarming way: it appears to us in a new light, takes on a special meaning. Such an experience can be as light and fleeting as a breath of air, or it can imprint itself deeply upon our minds.
One enchantment of that kind, which I experienced in childhood, has remained remarkably vivid in my memory ever since. It happened on a May morning — I have forgotten the year — but I can still point to the exact spot where it occurred, on a forest path on Martinsberg above Baden, Switzerland. As I strolled through the freshly greened woods filled with bird song and lit up by the morning sun, all at once everything appeared in an uncommonly clear light. Was this something I had simply failed to notice before? Was I suddenly discovering the spring forest as it actually looked? It shone with the most beautiful radiance, speaking to the heart, as though it wanted to encompass me in its majesty. I was filled with an indescribable sensation of joy, oneness, and blissful security.
I have no idea how long I stood there spellbound. But I recall the anxious concern I felt as the radiance slowly dissolved and I hiked on: how could a vision that was so real and convincing, so directly and deeply felt — how could it end so soon? And how could I tell anyone about it, as my overflowing joy compelled me to do, since I knew there were no words to describe what I had seen? It seemed strange that I, as a child, had seen something so marvelous, something that adults obviously did not perceive — for I had never heard them mention it.
While still a child, I experienced several more of these deeply euphoric moments on my rambles through forest and meadow. It was these experiences that shaped the main outlines of my world view and convinced me of the existence of a miraculous, powerful, unfathomable reality that was hidden from everyday sight.