The parable of the lost coin is the story about a woman who loses one of her ten silver coins. She looks through her entire house and rejoices when she finds the coin. After finding this coin, the lady makes it seem like that one coin has become more valuable than all of the other nine coins.
The significance of this story for me was the recurring theme in these parables of judgment. After the woman has found the one coin she lost, it becomes more valuable than all of the other nine coins even though they are of equal value in terms of money. This is similar to the idea that if one were to be a sinner and become lost from God, they would be preferred in the kingdom if they change their ways than nine people who do not repent but claim to be good. A person who has sinned but has begun repentance is much more valued by God then a person who sins and repents but claims not to.
This parable teaches us that God is a loving and forgiving person. Although someone may have been lost, they can still be found and repent and be let into the kingdom of heaven. God values those people far more than those who refuse to admit that they have sinned and claim to be followers of him. We learn from this parable that because God is such a loving and forgiving person, it is never too late to clean up our act. There is always an opportunity to repent and become a better person through the eyes of God.