Dimension Of Miracles by Robert Sheckley

The story follows Tom Carmody, an ordinary man who unexpectedly wins a galactic lottery and is whisked away on a surreal journey across the universe to claim his prize. As he navigates bizarre and often absurd encounters with various alien beings and dimensions, Carmody grapples with the challenges of returning home to Earth. The narrative explores themes of existentialism, the randomness of the universe, and the absurdity of life, all wrapped in a humorous and satirical tone that highlights the unpredictability of existence.