Mbh 12.301.4a

"'Bhishma said, "By casting off, through the aid of Yoga, these five faults, viz., attachment, heedlessness, affection, lust, and wrath, one attains to Emancipation. As large fishes, breaking through the net, pass into their own element (for ranging in felicity), after the same manner, Yogins (breaking through lust and wrath, etc.) become cleansed of all sins and attain to the felicity of Emancipation. As powerful animals, breaking through the nets in which hunters enmesh them, escape into the felicity of freedom, after the same manner, Yogins, freed from all bonds, attain to the sinless path that leads to Emancipation. Truly, O king, breaking through the bonds born of cupidity, Yogins, endued with strength, attain to the sinless and auspicious and high path of Emancipation. Feeble animals, O monarch, entangled in nets, are without doubt, destroyed. Even such is the case with persons destitute of the puissance of Yoga. As weak fishes, O son of Kunti, fallen into the net, become entangled in it, even so, O monarch, men destitute of the puissance of Yoga, encounter destruction (amid the bonds of the world). As birds, O chastiser of foes, when entangled in the fine nets of fowlers (if weak) meet with their ruin but if endued with strength effect their escape, after the same manner does it happen with Yogins, O chastiser of foes. Bound by the bonds of action, they that are weak meet with destruction, while they that are possessed of strength break through them. A small and weak fire, O king, becomes extinguished when large logs of timber are placed upon it. Even so the Yogin that is weak, O king, meets with ruin (when brought in contact with the world and its attachments). The same fire, however, O monarch, when it becomes strong, would (without being extinguished) burn with the aid of the wind, the whole Earth.