Meditation

[shootist]

Heinlein to the rescue (again) courtesy of The notebooks of Lazarus Long.

It’s amazing how much “mature wisdom” resembles being too tired.

[Scienke]

It's better to concentrate one's mental efforts on problems about which one can - even potentially - do something.

Agreed, but even there lies a risk of unnecessary worry if it gets out of balance. It's one thing to try and foresee and plan for a realistic problem that may very well arise.

It's quite something else to start trying to plan for things that are unlikely to happen. Again that word balance comes into it.

Eckhart Tolle's "The Power of Now" explains it very well. Comparing it to when cells in the body become unbalanced it causes disease. The same happens with an imbalance in the mind.