"Thereupon, magically influenced by the Buddha, the venerable Sariputra had this thought: "If the buddha-field is pure only to the extent that the mind of the bodhisattva is pure, then, when Sakyamuni Buddha was engaged in the career of the bodhisattva, his mind must have been impure. Otherwise, how could this buddha-field appear to be so impure?"

The Buddha, knowing telepathically the thought of venerable Sariputra, said to him, "What do you think, Sariputra? Is it because the sun and moon are impure that those
blind from birth do not see them?"

Sariputra replied, "No, Lord. It is not so. The fault lies with those blind from birth, and not with the sun and moon."

The Buddha declared, "In the same way, Sariputra, the fact that some living beings do not behold the splendid display of virtues of the buddha-field of the Tathagata is due to their own ignorance. It is not the fault of the Tathagata. Sariputra, the buddhafield of the Tathagata is pure, but you do not see it."

Vimalakirti Sutra