It's the knack of finding a positive for every negative, and viewing a setback as a challenge. It's not wishing for what we don't have, but enjoying what we do possess.
Most of you reading this are probably thinking, "Yes, absolutely. That would be my greatest wish for my child - for them to be happy and to enjoy life fully everyday."
This rabbit looks as though he is enjoying preening himself in the summer sunshine. The animal paid particular attention to his distinctive long ears as he gave his fur a spring clean.
Airship passengers can enjoy an indoor view of the clouds beneath their feet in the moon pool, or go to the upper deck promenade for an open-air excursion.
The National Parks in England are called "England's Breathing Spaces" because they are places where people can go to be in the open air, away from the dirt and noise of cities.