Now we come to the fourth noble truth which is the truth of the path. The truth of the path is the methods and means which lead us to the cessation of suffering. And the path is also the realizations which we gain through the practice of the dharma. The first of the three higher Trainings, the higher training in ethics, is basically guarding oneself from non-virtuous deeds of the body and speech. The second higher Training is the training in mental stabilization, concentration - meditating on an object for a long time.
Concentration is itself the means to overcome the subtle levels of negativities in our minds.
The third higher Training is the training in wisdom. In this case wisdom refers to the realization of emptiness, the meditation on emptiness. In the 12 links of dependent origination, the first link is ignorance. Here ignorance is referring particularly to the ignorance of grasping at true existence. The 12 links of dependent origination explains how we go about in cyclic existence over and over again.