“ As enkindled flame converts firewood into ashes, so does the fire of wisdom consume to ashes all karma. ”
Source: Bhagavad Gita 4:37
For those who have conquered the mind, the mind is their friend. For those who have failed to do so, the mind acts like an enemy.
He who withdraws his senses from the objects of perception, just as a tortoise withdraws its limbs into its shell, is established in steady wisdom
Even if you are the chief sinner among all sinners, yet by the sole raft of wisdom you shall safely cross the sea of sin
As a boat on the waters is carried off course by a gale, so an individual's discrimination is driven from its intended path when the mind succumbs to the wandering senses.
One who has restrained the senses from their objects is firmly established in wisdom.