What settles you
You settle by putting things in order. A list, a cupboard, a problem cut into small pieces. Until it is sorted, you keep going back to it.
Mercury rules this sign and is exalted in it, a case unique in the zodiac. The brightest star is Spica, the ear of wheat.
What puts you on alert often comes down to a detail only you have seen.
Why?
Your Moon in VirgoWhat settles you and what puts you on alert, before any conscious decision. In Virgo, it gets settled in the details. You spot what is off before looking for it, and you say so.