We shouldn't deny the 'existence' of these problems. [=we shouldn't deny that these problems are present or real]
long before the country had 'come into existence' [=begun to exist; come to have actual being]
I owe my very 'existence' [='life'] to their courage. [=I am alive because of their courage]
(..) And now it was wanted to be left that low world the it influences the parents and the excess of things materials. The things that separated Chris of their true existence. On the way to the crest of the I pacify, North of California. August of . Hey boy, an avent'n? Mount you. (..)2007 Into the Wild