Bhakti-rasāmṛta-sindhu .5.14
Blended reading (Sanskrit + English inline)
In the Lalita-mādhava, Rūpa Gosvāmī explains that the movements of Kṛṣṇa’s eyebrows are just like the Yamunā and that the smiling of Rādhārāṇī is just like the moonshine. When the Yamunā and the moonshine come in contact on the bank of the river, the water tastes just like nectar, and drinking it gives great satisfaction. It is as cooling as piles of snow.
Apāṅga means “near the corner of the eye.” It can mean the corner of the eye, or near the corner of the eye, or the outer portion of the eye. In the phrase śitāpāṅga, apāṅga has been explained as a place near the outer portion of the eye (netrānta). In this verse, the word kṛṣṇāpāṅga is used, indicating blackness near the edge of the eye at the corner. In the same way, a phrase like nīlendīvara-locana found in the Govinda-stava does not mean “eyes black like a blue lotus,” but rather “eyes whose surrounding area is blackish like the blue lotus.” This blackness is compared to the color of wave-filled Yamunā (taraṅgita-dyumaṇijā [Note: Dyumaṇi, jewel of the sky, means the sun. Dyumaṇi-jā means the daughter of the sun, who is Yamunā.] which is also blackish. In this aspect of blackness, the edges of the corners of the eyes and the Yamunā are similar. Taraṅgita is the past participle formed from the verb taraṅgayate (to become full of waves) with the addition of the suffix “i” and then “ta”.
My note
Source: vedabase.io