This is called oil pulling. As oral cleanliness is the first aspect of a good digestive system, practices like oil pulling are great for regulating your system. Oil pulling is also great for relieving jaw tension, headaches, and a number of other systemic ailments. The object of the game is to collect as much saliva as possible. As you do this, you will feel that you are pulling from some far reaches. This is helping to draw out excess bacteria and toxins. Make sure you do not swallow the oil, as it becomes toxic. When you are done, spit in the sink and clean your teeth with a dry toothbrush to get off any excess.