Feet in a dream usually represent grounding -- how stable your foundation feels, and which direction you're actually moving in. Feet that won't move or that ache can point to hesitation about the path ahead, while walking with ease often reflects confidence in the direction you've chosen for yourself.
Saturn should be asked for limitation of movements, hiding of secrets, impoverishment of countries, decrease of intentions, temptation of souls and water stagnation. - Picatrix (Andalusia, ~1000.AD)