大方廣圓覺修多羅了義經略疏 1.877

1.877

於四對法無勝劣心，如佛於三念之境，故言同也。同之所由，經自徵釋云：由一切覺故。故《論》云：「所言覺義者，謂心體離念。」今則離前與求、厭愛、敬憎、重輕等八念也。舉八境者，顯於心也。喻云光無憎愛，後云修習此心故。

Toward the four pairs of dharmas they have no mind of superiority or inferiority, like the Buddha regarding the realms of the three mindfulnesses; therefore it is said to be "identical." As for the reason for this identity, the sūtra itself questions and explains: "Because all is enlightenment." Therefore the Treatise states: "What is meant by enlightenment is that the mental essence is free of thoughts." Here, one is free of the eight thoughts mentioned above: binding and seeking, loathing and loving, venerating and despising, and prizing and slighting. Bringing up the eight realms is to reveal the mind. The simile says that light has neither hatred nor love; later it says, "Because of cultivating this mind."