what dose buety is in the eyes of the beholder means?

The saying is: Beauty lies in the eyes of the beholder. This means that what is beatiful to one person may not be beautiful to another.Take for instance Aishwarya Rai.Many in India would consider her beautiful. Not me. I consider Katrina Kaif as beautiful in the current generation of Indian Actresses.Then there is Rekha. I consider her beautiful. This saying means esp in situations like someone who many people's opinion can't be called anywhere near beautiful but one particular person found her beautiful.Same is true of women looking at men too.