Contrast experiences go both ways, however, most people tend to focus only on the negative contrast experiences. fortunately? the world remains filled with positive ones.
Want to know the value of good health ? Visit a hospital ( especially a mental hospital )
Want to know the value of a home ? Visit a homeless Shelter
Want to know the value of food ? Visit a food shelter
Want to know the value of peace ? Visit a war zone
Want to know to value of family? Visit an orphanage
Want to know the value of freedom ? Visit a prison
Want to know the value of life? Visit a Hospice
And talk to the people there, and like Gary, you might just learn a thing or two about yourself that will teach you the importance of making the most of what you have and not taking anything for granted.