the beating
Examples
Don't forget that God sees you and watches you when you are in pain; He perceives even the beating of your heart. Consequently, He will not leave you without consolation and His fatherly protection.
Of all the music that reached farthest into heaven, it is the beating of a loving heart.
The names are the first things to go, after the breath has gone, and the beating of the heart. We keep our memories longer than our names.
The first camel in the train holds everyone up, but it is the last which gets the beating.
The flea sinned, the reed-mat got the beating.
A second wife cannot celebrate the beating of the first wife because that same beating awaits her when the third wife arrives.