The Starship Helvetica

A stunningly bright wisp of light whipped past the purple dude and the green dude. They thought "It seems friendly enough," and followed it. The wisp led them through every bit of existence they had ever experienced, even some they hadn't. They meandered through various dimensions until suddenly they came to a ladder, right in the middle of reality. The wisp drifted away, up the ladder. The dudes, thinking that the ladder seemed friendly enough, began to climb. When they finally reached the top of the ladder through reality, they were overwhelmed by the impossibility of what they were seeing. Meanwhile, the wisp drifted away, thinking to itself that space was really, really big.