Wise words, although I would also count work as a blessing in itself. Having a real sense of purpose and usefulness in the world is important. Being forced out of the workforce by advanced aging must be rough
There was a man at the church I grew up in who was seriously disabled in an industrial accident who volunteered 40 hours a week at the local library. Similarly my grandmother volunteered at a hospital into her 90s. In her case it actually saved her life when she had an aortic aneurysm that almost certainly would have killed her if she hadn't already been at the hospital when it happened!
2) Helping others is another thing that is incredibly rewarding, mentally at least.