Ed Farraday loves the old rundown Farraday Mansion where he lives but bills are building up. He has a nightmare where he leaves his body, walks through a wall and then sees a bright light at which point he wakes up. A doctor at a local free hospital tells him that the dream represents wish fulfilment and the light is simply a rising sun. Ed has the dream again and when he wakes up decides to solve it. He goes to the wall and finds a secret panel. He enters a chamber and then sees a bright light which is a chest of treasure. Now Farraday Mansion looks better than it ever has before!
The human brain cannot conceive of something going on endlessly!
In the year 3000 a faster than light space ship is developed to take man to the very end of the universe. Since the scientists think the chances of returning are slim, they choose a pilot with an unhappy life of no family, friends, or job who doesn't care if he returns as long as he can learn the secret. He makes it to the end and the ship does return to Earth. When they bring out the pilot all he can repeat over and over is "I know!" The scientists realize they must abandon their quest since the pilot's mind has snapped, but observe that he has finally gained some measure of happiness.