According to the classification system of Holy Tantra Esoteric Buddhism, Buddhism is classified into twelve vehicles.  Therefore, the teachings of twelve holy vehicles, be them the three exoteric vehicles or the nine esoteric vehicles, are all equal and non-comparable.  All vehicles exist in harmony with the others, and each is appropriate for delivering people of different circumstances.

         For Buddhism to enter the modern society, it should follow the principles of non-intervention with politics and clear arrangement of the religion and teachings.  It should enter from the four different angles of culture, society, belief, and ideals.  It should utilize the different breadths, different depths, and different vehicles of Buddhist culture and doctrines for education.  Therefore, the classification of twelve Buddhist vehicles of Holy Tantra Esoteric Buddhism, in the cultural education of Buddhism, can maintain the uniqueness of each vehicle's concepts and doctrines, while achieving mutual consistency and perfect internal harmony.  This also reveals the strong vital force of Holy Tantra Esoteric Buddhism.