etat - for this; arthaḥ - purpose; avatāraḥ - descent; ayam - this; bhū - of the earth; bhāra - the burden; haraṇāya - for removing; me - by Me; saṁrakṣaṇāya - for the complete protection; sādhūnām - of the saintly; kṛtaḥ - done; anyeṣām - of others (the nonsaintly); vadhāya - for killing; ca - and.

This is the purpose of My present incarnation — to relieve the earth of its burden, protect the pious and kill the impious.