Communion with Brahma cannot be taught to us even by our spiritual preceptor; he can only give us a clue to the mystery; renunciation of things of the material world is called Yoga.
यतो न गुरुरप्येनं श्रावयेदुपपादयेत्। तं विद्याद् ब्रह्मणो योगं वियोग योगसंज्ञितम्॥