Mahāprajñāpāramitā Sūtra

...all sensations born from the condition of mind-contact. The purity of that which is produced by the mind is the purity of the earth-element. The purity of the earth-element is the purity of that which is produced by the mind. Why? Because the purity of that which is produced by the mind and the purity of the earth-element are non-dual, without two divisions, undifferentiated, and unbroken. Subhuti, the purity of that which is produced by the mind is the purity of the water, fire, wind, space, and consciousness elements. The purity of the water, fire, wind, space, and consciousness elements is the purity of that which is produced by the mind. Why? Because the purity of that which is produced by the mind and the purity of the water, fire, wind, space, and consciousness elements are non-dual, without two divisions, undifferentiated, and unbroken. Subhuti, the purity of that which is produced by the mind is the purity of ignorance. The purity of ignorance is the purity of that which is produced by the mind. Why? Because the purity of that which is produced by the mind and the purity of ignorance are non-dual, without two divisions, undifferentiated, and unbroken. Subhuti, the purity of that which is produced by the mind is the purity of volitional formations, consciousness, name and form, the six sense bases, contact, feeling, craving, grasping, becoming, birth, and old age, death, sorrow, lamentation, suffering, distress, and despair. The purity of volitional formations up to old age, death, sorrow, lamentation, suffering, distress, and despair is the purity of that which is produced by the mind. Why...