首楞嚴義疏注經 2.396

2.396

此舉由一明緣，以答見種種相。世間之法假因託緣方始名見，非是離相湛然之見，如下文云「緣見因明，暗成無見，不明自發，則諸暗相永不能昏。」

This brings forward the single condition of light to answer seeing various forms. Worldly phenomena must depend on causes and rely on conditions before they are called seeing; this is not the serene seeing that is free from characteristics. As a later passage says: "Conditioned seeing relies on light, and darkness becomes not seeing; if brightness arises of itself, then all forms of darkness can never obscure it."