enlightment (sudden … or intuitive understanding) n. satori [Japanese]

[Starting with] the 27th letter [of Dr. Seuss’s “On Beyond Zebra”], “yuzz,” I was surprised, enchanted and immediately freed from the limits of penmanship and reading circles. Every new letter (“floob,” “zatz” and more!) was a delight and a possibility. Who knew you could break the rules like that? It was satori in the second grade. [Harold Heft, “The Book That Changed My Life,” The New York Times, 01/19/2020.)

This word, when used in the above sense, can also be a synonym for insight, understanding, comprehension, awareness, consciousness, recognition or knowledge.