Starwhale drifts into sleep and dreams of a 2D civilization. He tries to make contact but the conversation gets lost between the dimensions. A little sad, he turns and leaves, only to encounter something from another dimension beyond his own--learning empathy for the second dimension and a bit about the 4th and other dimensions in the process. 

Themes: Multiple Dimension Theory, Tesseracts, Our Limited (3rd Dimension) Point of View

Inspired by this iconic moment from Carl Sagan's Cosmos: https://www.youtube.com/watch?v=UnURElCzGc0