We must also recognize that this discipline, concentration, and wisdom are equivalent to the method of Buddha-remembrance. How so? Discipline means preventing wrongdoing. If you can wholeheartedly practice Buddha-remembrance, evil will not dare to enter—this is discipline. Concentration means eliminating the scattering characteristic of ordinary mind. If you wholeheartedly practice Buddha-remembrance, mind does not have any other object—this is concentration. Wisdom means clear perception. If you contemplate the sound of the Buddha-name with each syllable distinct, and also contemplate that the one who is mindful and the one who is the object of this mindfulness are both unattainable—this is wisdom. (Master Zhuhong in Pure Land, Pure Mind, trans. J.C. Cleary.)