The Causal Formula
Pages 1

The Middle Path is the way of escape, from sorrow, to liberation. But how is sorrow linked with craving? This is demonstrated by the Causal Formula, by applying Truths II and III to the law of Kamma: 'That being present, this becomes; from the arising of that, this arises,' declared the Buddha. 'That being absent, this does not become; from the cessation of that, this ceases.'