Ruling Planet Mercury enters the “go get ’em” sign of Aries on April 10. This is a great time for you because you’ll feel like you’re waking up from a two month period when you felt groggy and like you weren’t as on top of things as you should be. Aries rules the head. Mercury rules the mind. And together you’ll be feeling alert, aware, and ready to take advantage of any opportunity that comes winging your way.