This story indicated that the people's Kikon (grounding and capability to understand the teachings of Buddha) was adjusted by Sanjo, then Ichijo (One Vehicle teaching) which was Daibyakugosha was given.
それら人々の機根（仏の教えを理解する素養や能力）を三乗の方便教で調整し、その後に大白牛車である一乗の教えを与えることを表している。