大乘起信論內義略探記 1.65

1.65

問：若爾，眾生自心之中，真如之用，何說佛執化？答：眾生真心，即諸佛體，故《華嚴》云「若人欲求知，三世一切佛，應當如是觀，心造諸如來。」又《不增不減經》云「法身即眾生，眾生即法身，法身與眾生，義一名異也。」既從法身起報化用，何得是不眾生真心也。

Question: If so, regarding the function of tathatā within the sentient being's own mind, why is it said that a buddha directs the transformation? Answer: The true mind of sentient beings is itself the essence of all buddhas; hence the Avataṃsaka-sūtra says: 'If someone wishes to know / all buddhas of the three periods of time, / they should contemplate in this way: / the mind creates all Tathāgatas.' Furthermore, the Anūnatvāpūrṇatva-nirdeśa-sūtra says: 'The dharmakāya is sentient beings; sentient beings are the dharmakāya. The dharmakāya and sentient beings have one meaning and different names.' Since the functions of reward and transformation arise from the dharmakāya, how could this not be the true mind of sentient beings?