This single word embraces the entire spectrum of existence and experience. What there is to know is what one creates as knowing, interleaved with what one creates to Know Not.
Thus passion and denial are formed in the furnace of Knowing, as are dull and fascinating, sad and exhilarating knowings. Bored knowing is a created condition of Know. So is fear and anger. What do you know? What do you know not?
Notice too that to be the 'I' that knows is also a knowing, a generated field of experienced certainty which could be the core description of all experience.
In the beginning and the end is the word, and the word is Know.