上了大路 The Road to the Land of Precious Images
八戒當頭領路,沙僧後隨,出了那松林,上了大路。你看他兩個嚌嚌嘈嘈,埋埋怨怨,三藏只是解和。遇晚先投宿,雞鳴早看天。一程一程,長亭短亭,不覺的就走了二百九十九里。猛擡頭,只見一座好城,就是寶象國。八戒当头领路,沙僧后随,出了那松林,上了大路。你看他两个哜哜嘈嘈,埋埋怨怨,三藏只是解和。遇晚先投宿,鸡鸣早看天。一程一程,长亭短亭,不觉的就走了二百九十九里。猛擡头,只见一座好城,就是宝象国。
逐句解 Line by line
Eight Rules took the lead in front and Sha Monk followed behind; they came out of the pine wood and gained the high road. You should have seen the two of them, jabbering and grumbling, muttering and complaining, while Tripitaka did nothing but make peace between them.
當頭領路 = "to lead the way at the front." 嚌嚌嘈嘈 (jì-jì-cáo-cáo) and 埋埋怨怨 (both 埋 = mán) are reduplicated binomes for the disciples' bickering (埋怨 = mányuàn, "to grumble"); 解和 = "to reconcile, to smooth over." The comic squabbling resumes the pilgrims' ordinary manner after the tension of the cave.
At nightfall they would seek lodging first; at cockcrow they would rise to watch the sky. Stage by stage, past long pavilions and short, before they knew it they had gone two hundred and ninety-nine li. Then, raising their heads of a sudden, they saw a fine city before them — and this was the Land of Precious Images.
遇晚先投宿,雞鳴早看天 is a formulaic couplet for the daily rhythm of travel. 長亭短亭 (長 = cháng) — the "long and short pavilions" were roadside rest-stops marking the stages of a journey. 寶象國 (the Land of Precious Images) is the chapter's destination.
The chapter modulates, after the strain of the cave, back into its ordinary comic register: the two disciples squabble down the road in a spatter of reduplicated onomatopoeia (嚌嚌嘈嘈, 埋埋怨怨), and Tripitaka is reduced to the thankless office of peacemaker between them. The formulaic travel-couplet — lodging at nightfall, rising at cockcrow — telescopes the journey into a few strokes, in the tale-teller's shorthand for distance covered.
The passage exists chiefly to deliver the pilgrims to the gates of Baoxiang, and it does so with the characteristic gesture of the sudden lifted head (猛擡頭) that discovers a city. That discovery cues the set-piece 賦 to follow: the novel habitually greets a major kingdom with a formal descriptive rhapsody, and the abrupt sighting of "a fine city" is the hinge on which narrative gives way to panorama.