People think the goal of meditation is to empty the mind. It's not about clearing the mind; it's about focusing on one thing. When the mind wanders, the meditation isn't a failure. Our brain is like a wayward puppy, out of control. Catching it and putting it back to the object of focus is the mediation.
It can be as simple as focusing on your breath, which is my favorite technique for accessible meditation. Count one when you inhale, two when you exhale, and keep going. As you breathe, your mind will wander and other thoughts will come rushing to you. The trick is to not let those thoughts fester; make a conscious effort to always go back and focus on your breathing. (MORE)