I love this passage from John Calvin’s Institutes of the Christian Religion, in which the great Reformation theologian expounds upon the sensus divinitatis — the “sense of the divine” — which exists within every human mind. Calvin argues that even those who most despise God are unable to escape the awareness of divinity which is “engraved upon men’s minds”:
If, indeed, there were some in the past, and today not a few appear, who deny that God exists, yet willy-nilly they from time to time feel an inkling of what they desire not to believe. One reads of no one who burst forth into bolder or more unbridled contempt of deity than Gaius Caligula; yet no one trembled more miserably when any sign of God’s wrath manifested itself; thus — albeit unwillingly — he shuddered at the God whom he professedly sought to despise. You may see now and again how this also happens to those like him; how he who is the boldest despiser of God is of all men the most startled at the rustle of a falling leaf.
Whence does this arise but from the vengeance of divine majesty, which strikes their consciences all the more violently the more they try to flee from it? Indeed, they seek out every subterfuge to hide themselves from the Lord’s presence, and to efface it again from their minds. But in spite of themselves they are always entrapped. Although it may sometimes seem to vanish for a moment, it returns at once and rushes in with new force. If for these there is any respite from anxiety of conscience, it is not much different from the sleep of drunken or frenzied persons, who do not rest peacefully even while sleeping because they are continually troubled with dire and dreadful dreams. The imious themselves therefore exemplify the fact that some conception of God is ever alive in all men’s minds.