The Lord's inner direction cleanses the devotee's heart of all contamination produced by the material modes of passion and ignorance. Nondevotees are under the sway of passion and ignorance. One who is in passion cannot become detached from material hankering, and one who is in ignorance cannot know what he is or what the Lord is. Thus when one is in passion or ignorance, there is no chance for self-realization, however much one may play the part of a religionist. For a devotee, the modes of passion and ignorance are removed by the grace of the Lord. In this way the devotee becomes situated in the quality of goodness, the sign of a perfect brāhmaṇa. Anyone can qualify as a brāhmaṇa if he follows the path of devotional service under the guidance of a bona fide spiritual master. Śrīmad-Bhāgavatam (2.4.18) also says:
- kirāta-hūṇāndhra-pulinda-pulkaśā
- ābhīra-śumbhā yavanāḥ khasādayaḥ
- ye 'nye ca pāpā yad-apāśrayāśrayāḥ
- śudhyanti tasmai prabhaviṣṇave namaḥ
Any lowborn person can be purified by the guidance of a pure devotee of the Lord, for the Lord is extraordinarily powerful.
When one attains brahminical qualifications, he becomes happy and enthusiastic to render devotional service to the Lord. Automatically the science of God is unveiled before him. By knowing the science of God, one gradually becomes freed from material attachments, and one's doubtful mind becomes crystal clear by the grace of the Lord. One who attains this stage is a liberated soul and can see the Lord in every step of life. This is the perfection of sambhava, as described in this mantra of Śrī Īśopaniṣad.