Bhagavad Gita

ಆವೃತಂ ಜ್ಞಾನಮೇತೇನ ಜ್ಞಾನಿನೋ ನಿತ್ಯವೈರಿಣಾ ।
ಕಾಮರೂಪೇಣ ಕೌಂತೇಯ ದುಷ್ಪೂರೇಣಾನಲೇನ ಚ ॥೩೯॥
āvṛtaṃ jñānametena jñānino nityavairiṇā |
kāmarūpeṇa kauṃteya duṣpūreṇānalena ca ||39||

Gist of the sloka:
O Kauntaeya, even after consuming like the fire, the Kama [desire] is the greatest enemy for a seeker. It does not let go of knowledgeable people, blinding their minds.
This rajasic gunas, prevent use of knowledge of a gynani; while for a non-aware person it will prevent any knowledge reaching him like a barrier. Desire and anger are the greatest enemies of the man. The fire of the desire is never satisfied. Give into one and it creates 10 more desires.
The name Kauntaeya invokes is a reminder to Arjuna, that he being the son of Kunti, should remember how his mother has undergone various difficulties all her life but is still is determined to follow the right path. Removing the desire, temptation, enforce the discipline over mind.