Reading the list is passive. Applying it is active. If you do not want to become one of Ware’s statistics, here is how to use the PDF (or this article) as a living document.
"Often they would not truly realise the full benefits of old friends until their dying weeks."
You do not have to wait until your final weeks to experience the clarity that Ware's patients found. You can actively combat these regrets right now:
Many people suppress their feelings to keep peace with others. As a result, they settle for a mediocre existence and never become who they are truly capable of becoming. Many developed illnesses related to the bitterness and resentment they carried.