What's happening
Jupiter takes about twelve years to complete a circuit of the zodiac, spending roughly a year in each sign. Its ingress into a new sign is a yearly shift in the longest-running weather most people track without an almanac — the background mood of the culture over the course of a calendar year.
Jupiter retrogrades for about four months of each year, so the sign change often involves one or two back-and-forth crossings of the boundary before the transit fully settles.
The tradition
Jupiter is classically called the greater benefic — the planet of expansion, generosity, faith, meaning, and the search for something larger. Cancer is a cardinal water sign ruled by the Moon, whose themes are home, lineage, belonging, memory, and the emotional body.
Classical astrology names Cancer as Jupiter's sign of exaltation — a dignity considered almost as favourable as rulership. The reasoning is that Jupiter's expansiveness finds its most humane expression inside Cancer's concern for care, family, and the protected interior. Wealth in Cancer looks like a fuller table, not a larger portfolio. Faith in Cancer sounds like a grandmother praying.
Expect the year of Jupiter in Cancer to foreground domestic themes in the culture and in personal life: housing, parenthood, roots, ancestry, national identity, and the work of making places that people can actually live in. The last pass ran June 2013 through July 2014.
How to work with it
Lean toward what grows your sense of home. Repair a relationship with a family member if the repair is real. Put time into the dwelling — the actual walls, the table, the pantry. Take the trip back. Write down the story before the person who can confirm it is gone.
The shadow is sentimentality that never becomes action, or the opposite — using Jupiter's confidence to outgrow a home that still matters. Cancer rewards the expansion that deepens belonging rather than the expansion that outruns it.
The simple rule
Ask what a more generous version of your inner life would actually look like on a Tuesday afternoon. Jupiter in Cancer answers well to small, domestic yeses.