1. The first proof is Rethinking the bucket list - a 10 minute TEDx talk of 20 year experienced counselor and facilitator for the dying (and amusingly also refers to stopping the 'b*llsh*t' :) .
2. The second proof I found is 'the top 5 regrets of the dying', based on a likewise-named book of Bronnie Ware, a woman who worked in palliative care in Australia in search for meeaning, and shared her results in 5 main points:
you can read the extended explanations of the points on her website
3. And the third proof are the words of Ric Elias, an air plane crash survivor, who shares the 3 things he learned while his plane crashed.
For me three inspirational, and hard proof messages, what do they tell you?