White light will be from the west direction, 西方阿弥陀佛 or Amitābha. Amitābha (Sanskrit: अमिताभ, Amitābha (wordstem), Hindi pronunciation: [əmɪtaːbʱə]; Amitābho; Chinese: 阿彌陀佛, Āmítuó Fó; Japanese: 阿弥陀如来, Amida; Tibetan: , Ö-pa-me) is a celestial buddha described in the scriptures of the Mahāyāna school of Buddhism. Amitabha is the principal buddha in the Pure Land sect, a branch of Buddhism practiced mainly in East Asia. According to these scriptures, Amitābha possesses infinite merits resulting from good deeds over countless past lives as a bodhisattva named Dharmakaya. "Amitabha" is translatable as "Infinite Light," hence Amitabha is often called "The Buddha of Infinite Light."
The sutra goes on to explain that Amitābha, after accumulating great merit over countless lives, finally achieved buddhahood and is still alive in his land of Sukhāvatī, whose many virtues and joys are described.
The Larger Sukhāvatīvyūha Sūtra
The Smaller Sukhāvatīvyūha Sūtra
The Amitāyurdhyāna Sūtra (Sutra on the Meditation on Amitāyus).
Through his efforts, Amitabha created the "Pure Land" (净土, Chinese: jìngtŭ; Japanese: jōdo; Vietnamese: tịnh độ) called Sukhāvatī (Sanskrit: "possessing happiness") . Sukhāvatī is situated in the uttermost west, beyond the bounds of our own world. By the power of his vows, Amitābha has made it possible for all who call upon him to be reborn into this land, there to undergo instruction by him in the dharma and ultimately become bodhisattvas and buddhas in their turn (the ultimate goal of Mahāyāna Buddhism). From there, these same bodhisattvas and buddhas return to our world to help yet more people.