tṛṇād api sunīcena taror api sahiṣṇunā amāninā mānadena kīrtanīyaḥ sadā hariḥ

This statement indicates that one can hear or speak about Vedanta philosophy through the disciplic succession. One must be very humble and meek, more tolerant than a tree and more humble than the grass. One should not claim respect for himself but should be prepared to give all respect to others. One must have these qualifications to be eligible to understand Vedic knowledge.