194
Śrimad-Bhāgavatam
[Canto 6, Ch. 4]
drumebhyaḥ krudhyamānās te tapo-dīpita-manyavaḥ mukhato vāyum agniṁ ca sasṛjus tad-didhakṣayā
drumebhyaḥ —unto the trees;  krudhyamānāḥ —being very angry;  te —they (the ten sons of Prācīnabarhi);  tapaḥ-dīpita-manyavaḥ —whose anger was inflamed because of long austerities;  mukhataḥ —from the mouth;  vāyum —wind;  agniṁ —fire;  ca —and;  sasṛjuḥ —they created;  tat —those forests;  didhakṣayā —with the desire to burn.
TRANSLATION
Because of having undergone long austerities in the water, the Pracetās were very angry at the trees. Desiring to burn them to ashes, they generated wind and fire from their mouths.
PURPORT
Here the word  tapo-dīpita-manyavaḥ  indicates that persons who have undergone severe austerity ( tapasya ) are endowed with great mystic power, as evinced by the Pracetās, who created fire and wind from their mouths. Although devotees undergo severe  tapasya , however, they are  vimanyavaḥ ,  sādhavaḥ , which means that they are never angry. They are always decorated with good qualities.  Bhāgavatam  (3.25.21) states:
titikṣavaḥ kāruṇikāḥ suhṛdaḥ sarva-dehinām ajāta-śatravaḥ śāntāḥ sādhavaḥ sādhu-bhūṣaṇāḥ
A  sādhu , a devotee, is never angry. Actually the real feature of devotees who undergo  tapasya , austerity, is forgiveness. Although a  Vaiṣṇava  has sufficient power in  tapasya , he does not become angry when put into difficulty. If one undergoes  tapasya  but does not become a  Vaiṣṇava , however, one does not develop good qualities. For example,