Bhagavatapurana 10.2.33

33. "Not thus do Thy devotees swerve from the path, O Madhava, for they have conceived a deep love for Thee: protected by Thee, they fearlessly go about, O Lord, setting their foot on the heads of those that lead the army of obstructions and impediments.

34. "During the time of protection Thou assumest a form of absolute purity (Satva), which leads to the attainment of the desired good and with which people endeavour to worship Thee by studying the Vedas, active Yoga practices, penance, and concentration: (without an objective body there is no possibility of performing Thy worship).