In Beckett's popular absurdist play Waiting for Godot, the titular character never appears and remains a mystery throughout the entire play. The main protagonists, Vladimir and Estragon, are waiting for Godot to arrive, and the act of waiting itself is a choice they make consciously or maybe even unconsciously.
Even though they are constantly informed by Godot's young messenger that Godot will not be arriving, they still decide to wait for him, and this is where the absurd lies. Their waiting actually symbolizes the quest for happiness and fulfillment—the people are wasting their time trying to achieve their hopes and dreams, waiting for something good to happen to them, not realizing that there's actually no real meaning to life. Godot is the metaphorical representation of this lack of meaning, hence why he never actually arrives.
According to some critics and analysts, as well as readers, Godot might also be God, or rather Beckett's interpretation of God; many believe that the name "GODot" and some of the descriptions and religious analogies used to characterize Godot prove this theory. For instance, Vladimir and Estragon are not actively searching for Godot, they're waiting for him to arrive, similar to how Christians await the arrival of the Messiah. Didi and Gogo are waiting for Godot in the hopes that he will save them and they're even worried that he might punish them if they stop waiting for him. Godot is also described as a kind man with a white beard, which is similar to how God is presented in the Bible:
VLADIMIR: Has he a beard, Mr. Godot?
BOY: Yes Sir.
VLADIMIR: Fair or... or black?
BOY: I think it's white, Sir.
One can't help but notice, however, Beckett's pessimistic nature when it comes to describing Godot and the meaninglessness of life, who through the character of Godot implies that this long-awaited "savior" might never come to aid the people and deliver them from evil and suffering and ultimately save their souls.
It is also notable to consider the possibility that Godot hasn't arrived yet simply because he is already there—he's nowhere, and he's everywhere at the same time. Perhaps Godot is all of the characters together, who fail to realize that they are the only ones who can actually determine their path and create their own fate—that they're simply waiting for themselves to take action and make a change in their lives.