Canal

To see the water of a canal muddy and stagnant-looking, portends sickness and disorders of the stomach and dark designs of enemies. But if its waters are clear a placid life and the devotion of friends is before you. For a young woman to glide in a canoe across a canal, denotes a chaste life and an adoring husband. If she crossed the canal on a bridge over clear water and gathers ferns and other greens on the banks, she will enjoy a life of ceaseless rounds of pleasure and attain to high social distinction. But if the water be turbid she will often find herself tangled in meshes of perplexity and will be the victim of nervous troubles.
  

Spiritual flow is restricted by conventional ideals (more) ; Dirty or polluted: circulatory system