What is sight for sore eyes?

The phrase "a sight for sore eyes" is an idiomatic expression used in English to describe something or someone that is very pleasing or a great relief to see, especially after a period of looking at or dealing with things that are less pleasant. The expression conveys a sense of comfort, delight, or happiness upon encountering something positive or familiar.

The origin of the phrase dates back to the 18th century and is often attributed to Jonathan Swift, an Anglo-Irish satirist and essayist, who is believed to have first used it in the line, "The sight of you is good for sore eyes" from one of his works. Over time, the phrase has become a common compliment or expression of relief and has been widely used in literature, films, and everyday conversation.

In a more general context, "a sight for sore eyes" can refer to any welcome or enjoyable sight or experience, particularly one that stands out in contrast to a less enjoyable environment or situation.