What are the indications of a man who is firm in his mind?

The man with a steady mind is strong in his objective. But without affection towards it. He does not experience happiness when good things happen to him and does not experience aversion when bad things happen.  Akin to a tortoise that can instantaneously withdraw its limbs from all the sides, the man with the ability to withdraw his emotions from his objective will be able to hold to his steady mind. An abstinent person who can hold his senses and emotions, does not have worldly experiences (vile and guile). Only passion left within him is for the ultimate knowledge. After achieving that knowledge, all his desires perish.

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