These papers are prayers inserted into the Western Wall in Jerusalem.
After visiting the Western Wall in Jerusalem, many visitors wonder about those papers they see stuffed into the wall. Those papers are generally the written prayers that people hope God notices. If that’s the case what happens to them? Are they simply left there forever?
“Each year millions of notes are placed among the stones by Jewish and non-Jewish worshipers from Israel and abroad, including notes sent via the website of the Western Wall, fax and mail.”
Arutz-7 (Israel National News) published an article that answers that question. Read the full article and see the video at the link above.