Reliance and strength. Tug boats.
Strength of body is promoted for our health and safety and mega doses of vitamin D have been the go and seem popular fare for the elderly. Now medical science is reconsidering the safety of vitamin D in mega doses according to the Health Report on ABC radio (and on-line site). It is just as well to learn to live with uncertainty.
Predictions are very difficult to make and can't be relied on as to a persons length of life or chance of recovery. Surely it's a wise move to be wary of making predictions, they are often wrong yet shape our lives. Even unlikely people and the elderly are resiliant.