What is true joy in life?

Buddhism Day by Day

Wisdom for Modern Life by Daisaku Ikeda
Sunday, June 1, 2014:

What is true joy in life? This is a difficult question—and one that has occupied a great many thinkers and philosophers. Joy can quickly give way to suffering. Joy is short and suffering long. Also what passes for joy in society is superficial. It cannot compare with the joy deriving from the Mystic Law. The key then lies in cultivating a state of mind where we can declare without reservation that life itself is a joy. This is the purpose of our Buddhist practice.