The only true knowledge that we acquire are things that help with the progress of our souls. All of the things that we learn about the practical world are just temporary, ... they are of very limited benefit. True wisdom is hard to explain to others. It is best said in the simplest terms, or with an act of love.
I wrote a poem about this, it's called "little words",
Little words, the kind that confuse the big words.
silent, unspoken words, not in a language I know.
I know them,
I have forgotten them.
In darkness they haunt and illuminate, turning black nothing into shimmering grey.
In sunlight they drift over my forehead.
taking away my fear,
they just give me,
a new moment.