I don't. Astrology is designed to predict (at some base level) the future based on star patterns that are no longer alecen at the same location or timing that they were originally. It is a pseudo-spiratual belief.
When I put in some toast it toasts it, assuming everything is working. If something isn't working I have to figure it out.
Why? Because it is a handful of wires that get hot when there is current. Not even cool wires like in a computer that do something meaningful.
I have no expectation that it is going to do anything but make my sandwich--and no reasonable person would carry such an expectation.