All teaching system in Mahāvairocana Sūtra is based on the Teaching of Three Verses (三句法門)―Enlightened mind is cause, Altruism is root, Upāya is Ultimate (菩提心爲因, 悲心爲根, 究竟爲方便)―in the Section of Stage of Mind (住心品). The theoretical and practical system in the bodhisattvas' thought of this sūtra must be also explained by the Teaching of three Verses. In the Esoteric Buddhism, ordinary people should realize bodhicitta (菩提心), so to speak, Mahābodhicitta surpassing the ordinary people's mind in order to become a Buddha. All of the bodhisattvas make bodhicitta inherent in ordinary people's mind a cause and relieve ordinary people from pains in reality regarding them as dharmakāyabuddha. They also make use of upāya for achieving salvation of ordinary people and enlightenment and develop buddha's omniscience ultimately. Through these activities bodhisattvas disclose the thought of the bodhisattva. In Mahāvairocana Sūtra the bodhisattva is defined as a being who seeks bodhi and omniscience in its mind with delight. This definition succeeds the definition from early buddhism to ten stages in Prajñāpāramitā Sutra (般若經) and Avatamska Sutra (華嚴經). But the peculiarity of the bodhisattvas' stages of Mahāvairocana Sūtra is that the ultimate stage lies in the first stage. The bodhisattvas' thoughts of Mahāvairocana Sūtra which put this world in the same category with the Mahāvairocana Buddha World give us a promising message that worldly realty is the same with pure Buddha World. And this sutra teaches us that our life is meaningful only when we can truly know our mind.

All teaching system in Mahāvairocana Sūtra is based on the Teaching of Three Verses (三句法門)―Enlightened mind is cause, Altruism is root, Upāya is Ultimate (菩提心爲因, 悲心爲根, 究竟爲方便)―in the Section of Stage of Mind (住心品). The theoretical and practical system in the bodhisattvas' thought of this sūtra must be also explained by the Teaching of three Verses. In the Esoteric Buddhism, ordinary people should realize bodhicitta (菩提心), so to speak, Mahābodhicitta surpassing the ordinary people's mind in order to become a Buddha. All of the bodhisattvas make bodhicitta inherent in ordinary people's mind a cause and relieve ordinary people from pains in reality regarding them as dharmakāyabuddha. They also make use of upāya for achieving salvation of ordinary people and enlightenment and develop buddha's omniscience ultimately. Through these activities bodhisattvas disclose the thought of the bodhisattva. In Mahāvairocana Sūtra the bodhisattva is defined as a being who seeks bodhi and omniscience in its mind with delight. This definition succeeds the definition from early buddhism to ten stages in Prajñāpāramitā Sutra (般若經) and Avatamska Sutra (華嚴經). But the peculiarity of the bodhisattvas' stages of Mahāvairocana Sūtra is that the ultimate stage lies in the first stage. The bodhisattvas' thoughts of Mahāvairocana Sūtra which put this world in the same category with the Mahāvairocana Buddha World give us a promising message that worldly realty is the same with pure Buddha World. And this sutra teaches us that our life is meaningful only when we can truly know our mind.

Mahāvairocana Sūtra, bodhisattva, Teaching of Three Verses, enlightened mind, altruism, upāya