With one thrust of my snout I rooted over the Dipper and Ox Palace, and ate the Queen Mother's magic mushrooms.

倒 is dǎo, knocked over — the falling-down reading, not the dào of contrariness. 斗 is dǒu, the Dipper: 斗牛 pairs two of the twenty-eight lunar mansions. He wrecked a constellation with his nose, and he is proud of it.

The Jade Emperor beat me himself, two thousand strokes, and banished me down through the three heavens.

親 — in person — is offered as an honour. Being flogged by the emperor's own hand beats being flogged by a clerk. 吾 is the literary I, and it raises the register for the sentence of exile.

I was told to set my will on nourishing the primal spirit; and down below I went and became a demon instead.

為 is wéi, to become — not the wèi of doing something for a reason. 元神 is the primal spirit of inner alchemy, the thing a practitioner is supposed to cultivate. He was given a penance and took up demonry, and the line puts the two halves side by side without comment.

I was happily married into Gao Village when, my luck being low, I ran into Brother Sun.

In 撞著, to collide with, the second character 著 is zháo — the reading for a thing achieved or run into, and not the zhe of an action in progress. 高莊 is the Gao Family Village, where he was living as a son-in-law until Pilgrim arrived. He calls the encounter bad luck.