Behaviors to adopt for life contentment:

Having meaning in your life

It is not finding the answer to the biggest question of life, but those who feel the presence of meaning in their lives have better physical and mental well-being, rather than the search for it.
As you find more meaning in life, you are more contented, but if you have no reason in life and are desperately looking for it, you will feel a lot more stressed out.
In life sense appears to change with age.
When individuals are in their 20s and hit their lowest levels at age 60, the quest for it can be intense.
Things continue to shift after 60's.
People are retiring from work and starting to lose their identity.
They begin to develop health problems and some of their friends and family start passing away.
We again begin to look for meaning in life because the meaning we once had has changed.