vyavahāre - in ordinary dealings; parama-arthe - in spiritual matters; tumi - you; tāra - of him; guru-tulya - like a spiritual master; tomāre - you; upadeśe - he advises; nā jāne - does not know; āpana-mūlya - his value.

“In affairs of spiritual advancement and even in ordinary dealings, you are on the level of his spiritual master. Yet not knowing his own value, he dares to advise you.