108
Śrīmad-Bhāgavatam
[Canto 7, Ch. 13]
anyābhilāṣitā-śūnyaṁ jñāna-karmādy-anāvṛtam ānukūlyena kṛṣṇānu- śīlanaṁ bhaktir uttamā
“One should render transcendental loving service to the Supreme Lord Kṛṣṇa favorably and without desire for material profit or gain through fruitive activities or philosophical speculation. That is called pure devotional service.” ( Bhakti-rasāmṛta-sindhu  1.1.11)
TEXT 25
यदृच्छया लोकमिमं प्रापितः कर्ममिर्भ्रमन् । स्वर्गापवर्गशोद्धारं तिरश्चां पुनरस्य च ॥२५॥
yadṛcchayā lokam imaṁ prāpitaḥ karmabhir bhraman svargāpavargayor dvāraṁ tiraścāṁ punar asya ca
yadṛcchayā —carried by the waves of material nature;  lokam —human form;  imaṁ —this;  prāpitaḥ —achieved;  karmabhiḥ —by the influence of different fruitive activities;  bhraman —wandering from one form of life to another;  svarga —to the heavenly planets;  apavargayoḥ —to liberation;  dvāraṁ —the gate;  tiraścāṁ —lower species of life;  punaḥ —again;  asya —of the human beings;  ca —and.
TRANSLATION
In the course of the evolutionary process, which is caused by fruitive activities due to undesirable material sense gratification, I have received this human form of life, which can lead to the heavenly planets, to liberation, to the lower species, or to rebirth among human beings.
PURPORT
All living entities within this material world are undergoing the cycle of birth and death according to the laws of nature. This struggle of birth