Srimad Bhagavatam Canto 01, Chapter 13, Text 48

SB 1.13.48

tad idam bhagavan rajann
eka atmatmanam sva-drk
antaro ’nantaro bhati
pasya tam mayayorudha
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Therefore, O King, you should look to the Supreme Lord only, who is one without a second and who manifests Himself by different energies and is both within and without.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The Supreme Lord Personality of Godhead is one without a second, but He manifests Himself by different energies because He is by nature blissful. The living beings are also manifestations of His marginal energy, qualitatively one with the Lord, and there are innumerable living beings both within and without the external and internal energies of the Lord. Since the spiritual world is a manifestation of the Lord’s internal energy, the living beings within that internal potency are qualitatively one with the Lord without contamination from the external potency. Although qualitatively one with the Lord, the living being, due to contamination of the material world, is pervertedly manifested, and therefore he experiences so-called happiness and distress in the material world. Such experiences are all ephemeral and do not affect the spirit soul. The perception of such ephemeral happiness and distress is due only to the forgetfulness of his qualities, which are equal to the Lord’s. There is, however, a regular current from the Lord Himself, from within and without, by which to rectify the fallen condition of the living being. From within He corrects the desiring living beings as localized Paramatma, and from without He corrects by His manifestations, the spiritual master and the revealed scriptures. One should look unto the Lord; one should not be disturbed by the so-called manifestations of happiness or distress, but he should try to cooperate with the Lord in His outward activities for correcting the fallen souls. By His order only, one should become a spiritual master and cooperate with the Lord. One should not become a spiritual master for one’s personal benefit, for some material gain or as an avenue of business or occupation for earning livelihood. Bona fide spiritual masters who look unto the Supreme Lord to cooperate with Him are actually qualitatively one with the Lord, and the forgetful ones are perverted reflections only. Yudhisthira Maharaja is advised by Narada, therefore, not to be disturbed by the affairs of so-called happiness and distress, but to look only unto the Lord to execute the mission for which the Lord has descended. That was his prime duty.
Srimad Bhagavatam Canto 01, Chapter 13, Text 47
Srimad Bhagavatam Canto 01, Chapter 13, Text 49