You have heard the quote, “There’s a God-shaped void in every heart that only God can fill,” and it is attributed to Blaise Pascal. In fact, that is only a paraphrase of what he actually said. Here’s the quote it must come from:
What else does this craving, and this helplessness, proclaim but that there was once in man a true happiness, of which all that now remains is the empty print and trace? This he tries in vain to fill with everything around him, seeking in things that are not there the help he cannot find in those that are, though none can help, since this infinite abyss can be filled only with an infinite and immutable object; in other words by God himself.
[Pascal, Pensees #425]