Importance of Dispositors

1
Pondering dispositors lately, say a 1/7 chart, my assumption is that when a planet is in a Sign that is ruled by another planet, it is supposed to be influenced by the planet that rules the Sign in which it is placed. For instance, if Saturn is in a Sign ruled by Venus, the Venus influence is presumed so to permeate Saturn. If Querent is Sun in Taurus, they are both ruled by Venus.

What significance does this have to querent and quesited? How does the same dispositor link the two signifactors? Positive? Of no significance if they don't aspect?

Just want to understand the links.