Brilliant in Defense

“The Shrimad-Bhagavatam states that the Sudarshana chakra penetrated the darkness just as an arrow released from the Sharnga bow of Lord Ramachandra penetrated the army of Ravana. Su means very nice, and darshana means observation; by the grace of Lord Krishna's disc, Sudarshana, everything can be seen very nicely, and nothing can remain in darkness.” (Shrila Prabhupada, Krishna, The Supreme Personality of Godhead, Vol 2, Ch 34)