If he did not let it out his heart would burst.

He looked at the kid and thought his heart would burst.

I heard and thought that my heart must burst with fury.

My heart is bursting and breaking at the same time.

He suddenly felt that his heart might burst with longing.

My heart would burst with the desire to cry out the truth.

But when they pull the ribs out, your heart must burst.

It feels, he thought, as if my heart were bursting.

Indeed, were I to stay even one night more in this house, my heart would burst from yearning.

I shall never hear it spoken without feeling as if my heart would burst.