New Delhi, March 3 -- Few lines in popular culture have endured quite like this one. Spoken and later sung by John Lennon, the quote has travelled far beyond the world of music. It has appeared in books, speeches, greeting cards and social media posts, often used as a reminder to pause and reflect. Decades after it was first written, the line still feels fresh and relevant.

Lennon included the words in the song "Beautiful Boy (Darling Boy)", released in 1980 on his album Double Fantasy. At the time, he had stepped back from the public eye to focus on family life. The lyric was addressed to his young son, but its meaning quickly resonated with listeners of all ages.

At its heart, the quote is about the unpredictability of life. Many peop...