PURPORT

A guru, or spiritual master, can be anyone who is well conversant with the science of Krsna. Therefore although Prahlada Maharaja was a grhastha ruling over the demons, he was a paramahamsa, the best of human beings, and thus he is our guru. In the list of gurus, or authorities, Prahlada Maharaja's name is therefore mentioned:

The conclusion is that a paramahamsa is an exalted devotee (bhagavat-priya). Such a paramahamsa may be in any stage of life-brahmacari, grhastha, vanaprastha or sannyasa-and be equally liberated and exalted.