A sevak is one who does ‘seva’. Seva refers to selfless service.

"A social worker who serves society with the attitude of serving God need not do separate idol worship. On the other hand, one should not have any insistence on not performing such worship either. Social service will purify the mind, qualifying one for the path of Knowledge."
- Swami Tejomayananda

The Dharma Sevak Course is thus for the spiritual aspirant who ardently seeks the Lord within, courageously lives noble values, and humbly serves humanity as a worship of the Supreme.