He literally learned about it on his deathbed, ... He was so happy to hear this.

Happy to hear you Sergei.

They're very happy to hear from her -- jubilant, joyful.

Happy are they that hear their detractions, and can put them to mending

It's very solemn. You don't want to look too happy. You don't want to show how happy you are because you know how devastated they are.

Let no man's deathbed be a futon.