請觀音經疏闡義鈔 3.6

3.6

「此言」下，正顯西方觀音以表道諦。觀即種智，故云大智。三德互融，故云無礙。「消此之毒」，即智能破惑，通至於理，即能通義。

From "These words" below: this directly reveals Avalokiteśvara of the west as representing the truth of the path. Contemplation is the knowledge of all aspects; hence it is called "great wisdom." The three virtues mutually interfuse; hence it is called "unobstructed." "Eliminating this poison" means that wisdom can destroy delusion and penetrate through to principle; this is the meaning of that which can bring penetration.