Behind apparently ordinary language it discovers rich mines of meaning to which the poem points.
If an astronomer is confronted by some phenomenon which has no obvious explanation he may postulate some set of conditions which from his general knowledge of the subject would or might give rise to the phenomenon in question; he then tests his hypothesis until he discovers whether it does or does not conflict with the facts.
Click for video clip The cat discovers a whole heck of a lot about what they're dealing with from a GELF arrow.
Debbie is horrified when she discovers the identity of the new school janitor, and Hannah is reduced to stealing from Helen.
Whilst cleaning the upstairs bedroom, Nishina discovers a little boy hiding in a wardrobe that's been taped shut.