Then he expounded the teaching of the twelve causes

Ignorance (avidyā): There are one hundred and eight kinds of depravities (kleśa), becoming numerous, [so to speak,] when they are applied to the various affairs. In reality, however, it can be said that there is no more than one kind of delusion. Ignorance represents all delusions. It is shown in desire (or “greed”) and attachment (or “seizure”). Desire for and attachment to that which is useless and has been valued from the past, all this we call “ignorance.”

Karmic legacy {predisposition} (saṃskāras): When karma committed through body, mouth, and mind appears in the present, it means that [a karmic legacy] exists, which causes a future effect to exist. When retribution is drawn to the background, the process is then completed and phenomena come into existence. When the creation of phenomena is passed, [what is left] we call karmic legacy. Karmic legacy has to do with transmigration in the realm of birth and death.

Cognition {consciousness} (vijñāna): Cognition is the beginning of the present body, which means that the phenomenon of life comes into being

Name and visible form (nāmarūpa): As cognition becomes a seed, it can give rise to “name and visible form.” The four aggregates (skandhas) are referred to as name; the fifth [aggregate, which is] consciousness (vijñāna), accounts for “visible form.” They also are said to be in the womb, in an obscure and dark state. There is little consciousness of suffering and pleasure; there is no more than just “name.”

The six sense organs (saḍāyatana): The six sensations arise to appropriately match the six qualities (gums).

Contact {Impression} (sparśa): Once sensations and qualities appear, the consciousness of body comes into existence. The body consciousness is delicate and subtle. The three things join together. “To join together” is what is meant by contact.

Perception {feeling} (vedanā): Once sensations and qualities join together, there is [the process of deciding] whether it is agreeable or not. Next the three states of perception arise.

Craving (tṛṣṇā): Pleasure conditions perception. To follow one’s will is called craving. With craving one is attached to something. He who is attached to something is one whose root of birth and death (saṃsāra) is deep. Hence, stretching everywhere are the branches of [birth and death].

Grasping (upādāna): Because of the obstruction caused by craving, the four categories of grasping arise. By “grasping” one is able to grasp birth and death (saṃsāra).

Becoming {Existence} (bhava): Because of the four kinds of grasping, the three kinds of karma are produced. They are referred to as becoming, in the sense that they can bring about “becoming.”

Birth (jāti): Because of the three kinds of karma, the shoots [of life] crave and grasp water and moisture, duly developing into birth.

Aging and dying (jarāmarana): As birth secures one in the state of undyingness, this is the residence of craving and compassion.

The twelve causes and conditions involve all the three periods of past, present, and future [lives]. However, the names [of the three] are invisibly revealed in accordance with the trace of transformation. How? Two are present in the past, eight in the present, and two in the future. Because of ignorance and karmic legacy, suffering in this life is induced; thus, if one intends to cut it off right now, then consequently [upon cutting it off] there will be no more birth and death. Birth and death are the locus of the various calamities. How can one not fear it? Thus these two beginnings are shown. Many made inquiries into the meaning of the words, but men drift in the three worlds because of the twelve [causes and] conditions; so if [causes and] conditions are destroyed, it means that stupidity and ignorance are cut dead by the knife of wisdom, and that the water of craving is scorched and dried off by the fire of knowledge. The lofty net [of knowledge] opens up over the four corners all over the six forms of existence. Nonrebirth (anutpatti or ajāti) surpasses the eight apexes [of suffering?].