Vidura knew the strength of Bhima. Whenever Bhima was on the battlefield, his steps on the path and the wonderful playing of his club were unbearable for the enemy. Powerful Bhima did not take steps against the sons of Dhrtarastra for a long time. Viduras inquiry was whether he had yet released his anger, which was like that of a suffering cobra. When a cobra releases its venom after long-cherished anger, its victim cannot survive.