“There is no need of material qualifications for making progress on the path of spiritual realization. In the material world, when one accepts some particular type of service, he is required to possess some particular type of qualification also. Without this one is unfit for such service. But in the devotional service of the Lord the only qualification required is surrender.” (Shrila Prabhupada, Shrimad Bhagavatam, 2.7.46 Purport)