After he had spent everything, there was a severe famine in that whole country, and he began to be in need.
So he went and hired himself out to a citizen of that country, who sent him to his fields to feed pigs.1
References for Luke 15:15
He longed to fill his stomach with the pods that the pigs were eating, but no one gave him anything.
"When he came to his senses, he said, 'How many of my father's hired men have food to spare, and here I am starving to death!
I will set out and go back to my father and say to him: Father, I have sinned2 against heaven and against you.
References for Luke 15:18