What is the literal and contextualist meaning and moral of the story about the lost sheep?

The literal, contextual and moral of the story about the lost sheep, is that each Individual is precious to God and that He will rejoice even if one sinner repents, and will accept and forgive him wholeheartedly.

Explanation:

The story of lost sheep is about a shepherd who loses one sheep and goes in search of it, finds it and brings it back home, rejoicing he has found it. He doesn't scold or reprimand the sheep when it is found, but embraces it happily.

This story is a parable, where Jesus compared what the shepherd did, with one sinner accepting his sin and repenting it.

He said that the heaven will rejoice, when even one sinner accepts his sin and repents over 99 righteous people, who do not need to repent.

God will forgive and embrace the, sinner, as in the eyes of God every follower is special and he has love for each of his followers.