Jupiter
In Tarot, Jupiter is the planet that rules over the Wheel of Fortune. In astrology, it rules Sagittarius.
Both the Wheel and Sagittarius reflect energies that grow, move, and refuse to be hemmed in.
Each in their own way express concepts of openness and a desire to go beyond traditional boundaries.
Jupiter and Thetis
Named for the Roman king of the gods, Jupiter’s characteristics typically include leadership, abundance, good fortune, big ideas, and expansion.
To understand how this planet and its associated sign and card came to be identified with size, take a look at this video by Brad Goodspeed.
No question about it, Jupiter is big.