Bodhisattva Vasubandhu 天亲尊者
生于释迦牟尼佛灭后九百年顷(约公元四、五世纪之间)，后于龙树菩萨约二百年，出生在今天巴基斯坦的白沙瓦，是著名的佛教论师，著有修学净土法门的心得论述《往生论》。《往生论》开示了念佛求生西方净土，建立五念法门。第一礼拜门，第二赞叹门，第三作愿门，第四观察门，第五回向门。以偈颂曰：“‘世尊我一心，归命尽十方，无碍光如来（阿弥陀如来)，愿生安乐国。’我现今依照甚深经典及如来真实功德相，以发愿往生偈颂的方式来总摄受持《无量寿经》，以便用来与释迦世尊所教导的净土念佛法门相应。”
《往生论》明确地指出极乐净土的庄严利益，是一切诸论中最详细分明的。《往生论》传到中国后，昙鸾大师（公元476～542年）在此基础上著《往生论注》。《往生论注》凝聚了自马鸣、龙树、天亲以来的净土教理，并融入中国的文化，是一部奠定后世净宗脉流的巨作。
Vasubandhu
Born nine hundred years after Sakyamuni Buddha entered Parinirvana (approximately between the 4th and 5th centuries) and about 200 years after Nagarjuna Bodhisattva. Vasubandhu was an influential Buddhist monk and scholar from Puruṣapura in ancient India, modern-day Peshawar, Pakistan. He was a great Dharma master who wrote a commentary on the Abhidharma. After his conversion to Mahayana Buddhism, along with his half-brother, Asanga, he was also one of the main founders of the Yogacara school.
He was the author of the Rebirth Treatise (Upadeśa on the Sūtra of Amitāyus Buddha) - a commentary based on his studies from the Infinite Life Sutra. It taught how to Nianfo and attained rebirth in the Western Pure Land. It established the five training doors of mindfulness. First is the door of paying homage, the second is the door of praising, the third is the door of making vows, the fourth is the door of visualising, and the fifth is the door of transferring. As the Gatha (verse) says, "World-honoured one, I single-mindedly take refuge in the Tathagata Amitayus, whose hindrance-free light shines in the ten directions, vowing to be reborn in His Land of Peace and Bliss, I now rely on the profound sutras, the true merit of the Tathagata, I speak these all-encompassing stanzas of vowing in accordance with the teachings of the Shakyamuni Buddha and uphold the Infinite Life Sutra, so it can be used to correspond to the method the World-Honoured One teaches about the Pure Land Nianfo (Buddha-mindfulness) Dharma gate.
The Rebirth Treatise clearly points out the solemn benefits of the Pure Land of Ultimate Bliss, which is the most detailed and clear among all the treatises. After the Rebirth Treatise came to China, Master Tanluan (476-542 AD) wrote the "Commentary on the Rebirth Treatise" on this basis. Commentary on the Rebirth Treatise condenses the teachings of the Pure Land since Aśvaghoṣa, Nagarjuna, and Vasubandhu and integrates them into Chinese culture. It is a masterpiece that laid the foundation for the lineage of Pure Land Buddhism in later generations.
