My dear boy, you also should take shelter of the Supreme Personality of Godhead, who is very kind to His devotees. Persons seeking liberation from the cycle of birth and death always take shelter of the lotus feet of the Lord in devotional service. Becoming purified by executing your allotted occupation, just situate the Supreme Personality of Godhead in your heart, and without deviating for a moment, engage always in His service.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तमेव वत्साश्रय भृत्यवत्सलं मुमुक्षुभिर्मृग्यपदाब्जपद्धतिम् । अनन्यभावे निजधर्मभाविते मनस्यवस्थाप्य भजस्व पूरुषम्
tameva vatsāśraya bhṛtyavatsalaṃ mumukṣubhirmṛgyapadābjapaddhatim | ananyabhāve nijadharmabhāvite manasyavasthāpya bhajasva pūruṣam
SB 4.8.22