What the eye does not see heart grieve. what it mean?

The phrase, "What the eye does not see heart grieve" is a proverb which means that if someone is unaware of something, they will not be upset by it. In other words, ignorance is bliss. This phrase is often used to justify not thinking about or facing difficult or unpleasant situations. While it can be true that not knowing about something can prevent us from feeling pain or sadness, it can also prevent us from taking action to address a problem or make things better.