Caerse el alma a los pies

[ROBINDESBOIS]

caerse el alma a los pies means Sufrir una decepción por no corresponderse la realidad con lo que se esperaba.
English?

[Rusty]

Have one's heart sink:
When he learned he was not accepted at the university of his choice, his heart sank.

Be down in the dumps:
He was down in the dumps about not being accepted.