首楞嚴義疏注經 2.639

2.639

說酢思崖，水酸形體，想像虛偽，能所俱空，元是菩提妙覺明性，何因緣、自然之有耶！

Speaking of sourness and thinking of the cliff, the water and sourness in the physical body: imagination is false and deceitful, both subject and object are empty, and originally it is the wondrous luminous enlightened nature of bodhi; how could there be causes and conditions or self-so nature!