The Beatles are singing
about a lost love. They're looking back at their childhood, teenaged years, and young-adulthood and recalls everything
that happened to them, and all the good memories. During their recolection though, they remember a certain person who
stood out through the years. This song is mainly about how everyone has so many memories in their life, know so many
people, and experience various events, but there will always be a specific person who stood out among those memories, and
that people should recognize the person before they loose them.