Growing up is a lot of work AND it promises many blessings for those who choose to work at it. The end of the long version of the Serenity Prayer hints at the joy of a maturing lifestyle.
Trusting that you will make all things right, if I surrender to your will [pause]
So that I may be reasonably happy in this life [pause] AND
Supremely happy with you forever in the next. [pause]
Dare to imagine what life could be if each day was reasonably happy with the hope for supreme happiness in the next life.