For example, Pluto takes 12-31 years to pass through one sign, but 24 hours to pass through the 12 houses.
If the difference between signs and houses still feels murky, it might be helpful to remember that the fastest moving body, the Moon, takes 2-3 days to pass through a sign. However, the Moon will pass through every house in your birth chart in a 24-hour window. The same applies for every planet. For example, Pluto takes 12-31 years to pass through one sign, but 24 hours to pass through the 12 houses.