The term 'THIS IS YOUR LIFE' is a phrase that has been used in various contexts throughout history. It is most commonly associated with a popular 1950s American television show of the same name, which featured celebrities being surprised by a host and then having their life story recounted. The phrase has also been used in other contexts, such as a book series and a song by the band Bon Jovi. In all cases, the phrase is meant to convey the idea that one's life is unique and should be appreciated.