oṃ saha nāvavatu
saha nau bhunaktu
saha vīryaṃ karavāvahai
tejasvi nāvadhītamastu mā vidviṣāvahai
oṃ śāntiḥ śāntiḥ śāntiḥ
May the Lord protect both of us (Guru and Shishya). May he nourish both of us with knowledge. May both of us make effort for the capacity (for knowledge to take place). May what is studied by us, be brilliantly clear. Let not have any misunderstanding. Let there be freedom from three possible obstacles (the forces over which we have no control, adhidaivika; from the beings around us, adhibhautika; or from factors centred on ourselves, adhyatmika.)