tat = that; vacaḥ = instruction; pituḥ = of Our father; eva = certainly; aham = I; sammatam = that is approved; dharmacāriṇām = by those who engage in dharma; karmaṇā = by the activity of; pālayiṣyāmi = will carry out; vana-vāsena = residing in the forest; rāghava = O descendant of Raghu.