Quotes from Vimalakīrti Nirdesa Sutra,
Chapter 1
“As such, Ratnakuta, bodhisattvas in accord with their forthright mind, they can initiate their practices;.....
In accord with pure dharma preaching, their wisdom will be pure;
In accord with pure wisdom, their mind will be pure;
In accord with the pure mind, their entire stock of merits will be pure.
Accordingly, Ratnakuṭa, bodhisattvas who wish to attain the pure land should purify their mind. Their Buddha Land will also be pure in accord with this pure mind.”
《維摩詰所說經》
〈佛國品第一〉
「如是，寶積！菩薩隨其直心，則能發行；隨其發行，則得深心；隨其深心，則意調伏；隨意調伏，則如說行；隨如說行，則能迴向；隨其迴向，則有方便；隨其方便，則成就眾生；隨成就眾生，則佛土淨；隨佛土淨，則說法淨；隨說法淨，則智慧淨；隨智慧淨，則其心淨；隨其心淨，則一切功德淨。是故寶積！若菩薩欲得淨土，當淨其心；隨其心淨，則佛土淨。」