Valmiki Ramayana Aranya Kanda Sarga 53 Shloka 18
Original Shlokaयथा चास्मिन्भयस्थाने न बिभेषि दशानन।।3.53.18।। व्यक्तं हिरण्मयान् हि त्वं सम्पश्यसि महीरुहान्।
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दशानन tenheaded Ravana, त्वम् you, अस्मिन् in this, भयस्थाने cause of fear, यथा even so, न बिभेषि you are not scared, हिरण्मयान् golden, महीरुहान् trees, सम्पश्यसि you see, व्यक्तम् evident.
O tenheaded Ravana, since you do not fear the source of fear, evidently you see golden trees. (a symptom of death).