Mud in a dream commonly reflects the sense of being stuck -- progress that's slowed to a crawl, or effort that doesn't seem to be moving you anywhere. Struggling to pull your feet free can mirror real frustration with a situation that resists quick resolution, however hard you're actually working at it.
To become wealthy use Jupiter because it has influx and quick response there; besides it means renovation and increase of goods. - Picatrix (Andalusia, ~1000.AD)