This surely is the point of Grant's film, that grief paves the way to gladness.
From the philly.com
We can pretend to gladness and kindness but we express our hatreds from within.
From the economist.com
Was there even a hint of vengefulness or gladness at Osama bin Laden's death?
From the telegraph.co.uk
She expressed, instead, her gladness that he had died doing something he really loved.
From the independent.co.uk
Gladness that we live in a land of laws, a land where the system works.
From the freep.com
In every man's heart there is a song of gladness at the advent of spring.
From the timesunion.com
We can feel all of our feelings, and find gladness and joy more often.
From the blog.beliefnet.com
Everywhere, people are marvelling at the weather, gleaming with gladness.
From the guardian.co.uk
On second thought, and despite SR's gladness, I feel I have lost the NPOV in the article.
From the en.wikipedia.org
More examples
Experiencing joy and pleasure
Happiness is a state of mind or feeling characterized by contentment, love, satisfaction, pleasure, or joy. A variety of biological, psychological, religious, and philosophical approaches have striven to define happiness and identify its sources.