Idiom: A blessing in Disguise
Meanings: A "blessing" is something good that happens. A "disguise" changes what a person looks like so people aren't able to recognize him. A "blessing in disguise" is an event that seems like a bad thing but turns out to be a good thing.
Examples: 1. A person is laid off but soon gets hired by another company that pays him more money and is located closer to his home. 2. A woman divorces her husband (which hurts him very much), but he soon meets another woman whom he develops a much better relationship with.