The works of Ādi Śaṅkarācārya

Viṣṇupādādikeśāntastotram

Verse 40

दिक्कालौ वेदयन्तौ जगति मुहुरिमौ संचरन्तौ रवीन्दूत्रैलोक्यालोकदीपावभिदधति ययोरेव रूपं मुनीन्द्राः ।अस्मानब्जप्रभे ते प्रचुरतरकृपानिर्भरं प्रेक्षमाणेपातामाताम्रशुक्लासितरुचिरुचिरे पद्मनेत्रस्य नेत्रे ॥ ४० ॥

In plain words

May the gracefully curved pair of eyebrows protect us from falling—those brows whose slightest twitch keeps gods and demons secure in their cosmic places, shining upon the stage of His forehead like a crescent moon or like a pair of dark, playful serpents.

Close to the Sanskrit

May the pair of eyebrows—whose middle is curved, by the slight movement of which the assemblies of gods along with demons are kept steady in their own stations, which shine upon the forehead stage like a pure white half-fragment of the moon's body, or like a pair of dark serpents sporting together—protect us from falling into Pātāla.