The purpose of Buddhist practice is to establish an eternally indestructible state of happiness; not a fleeting happiness that perishes like a flower but an internal palace of happiness that will last throughout all time.

Buddhism Day by Day

Wisdom for Modern Life by Daisaku Ikeda
Saturday, June 15, 2013:

 

The joy of heaven is ephemeral like a mirage or a dream. A life spent in pursuit of a mirage is itself a mirage. The purpose of Buddhist practice is to establish an eternally indestructible state of happiness; not a fleeting happiness that perishes like a flower but an internal palace of happiness that will last throughout all time.