चातुर्यवान्विवेकीच ।अध्यात्मज्ञानवान्शुचिः ॥मानसंनिर्मलंयस्य ।गुरुत्वंतस्यशोभते ॥
In plain words
The man who has skill and discernment, who has jñāna of what pertains to the ātman, who is pure, whose mind is without stain: in him the state of being guru shines.