Those who are saturated with the transcendental happiness of rendering service to the Supreme Personality of Godhead are uninterested even in the achievements of great mystics, for such achievements do not enhance the transcendental bliss felt by a devotee who always thinks of Kṛṣṇa within the core of his heart.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
समर्द्धयन्ति तान् कामाः स्वाराज्यपरिभाविताः । दुर्लभा नापि सिद्धानां मुकुन्दं हृदि पश्यतः
samarddhayanti tān kāmāḥ svārājyaparibhāvitāḥ | durlabhā nāpi siddhānāṃ mukundaṃ hṛdi paśyataḥ
SB 9.4.25