Mahāprajñāpāramitā Sūtra

...because the purity of that which is produced by the mind and the purity of volitional formations up to old age, death, sorrow, lamentation, suffering, distress, and despair 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 perfection of giving dāna-pāramitā perfection of giving. The purity of the perfection of giving 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 perfection of giving are non-dual, without two divisions, undifferentiated, and unbroken. The purity of that which is produced by the mind is the purity of the perfections of moral discipline, patience, diligence, meditative concentration, and wisdom. The purity of moral discipline up to the perfection of wisdom 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 moral discipline up to the perfection of wisdom are non-dual, without two divisions, undifferentiated, and unbroken. Subhuti, the purity of that which is produced by the mind is the purity of internal emptiness. The purity of internal emptiness 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 internal emptiness are non-dual, without two divisions, undifferentiated, and unbroken. The purity of that which is produced by the mind is the purity of external...