Meaning of the word "out of sight out of mind" in English

What does "out of sight out of mind" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

out of sight out of mind

US /aʊt əv saɪt aʊt əv maɪnd/
UK /aʊt əv saɪt aʊt əv maɪnd/

Idiom

something that is not seen or present is easily forgotten

Example:
I used to think about my old friends all the time, but now that we live so far apart, it's really out of sight, out of mind.
If you want to stick to your diet, you need to get all the junk food out of sight, out of mind.