What is que sera sera meaning?

"Que Sera Sera" is a popular phrase that means "whatever will be, will be" in Spanish. The phrase is often used to express the idea that the future is unpredictable, and trying to control or worry about it is pointless. Originally used in a song from the 1956 Alfred Hitchcock film "The Man Who Knew Too Much," the phrase has become a popular, optimistic way to approach life's uncertainties.