Srimad-Bhagavatam: Canto 9 - Chapter 1 - Verse 15-16

Sanskrit:

श्रीशुक उवाचअम्बरीषो महाभाग: सप्तद्वीपवतीं महीम् ।अव्ययां च श्रियं लब्ध्वा विभवं चातुलं भुवि ॥ १५ ॥मेनेऽतिदुर्लभं पुंसां सर्वं तत् स्वप्नसंस्तुतम् ।विद्वान् विभवनिर्वाणं तमो विशति यत् पुमान् ॥ १६ ॥

ITRANS:

śrī-śuka uvācaambarīṣo mahā-bhāgaḥsapta-dvīpavatīṁ mahīmavyayāṁ ca śriyaṁ labdhvāvibhavaṁ cātulaṁ bhuvi

Translation:

Śukadeva Gosvāmī said: Mahārāja Ambarīṣa, the most fortunate personality, achieved the rule of the entire world, consisting of seven islands, and achieved inexhaustible, unlimited opulence and prosperity on earth. Although such a position is rarely obtained, Mahārāja Ambarīṣa did not care for it at all, for he knew very well that all such opulence is material. Like that which is imagined in a dream, such opulence will ultimately be destroyed. The King knew that any nondevotee who attains such opulence merges increasingly into material nature’s mode of darkness.

Purport:

For a devotee material opulence is insignificant, whereas for a nondevotee material opulence is the cause of increasing bondage, for a devotee knows that anything material is temporary, whereas a nondevotee regards the temporary so-called happiness as everything and forgets the path of self-realization. Thus for the nondevotee material opulence is a disqualification for spiritual advancement.