1488
Śrīmad-Bhāgavatam
[ Canto 4, Ch. 30 ]
Siddhaloka, and so on. However, a pure devotee never aspires for any kind of material happiness. The pure devotee is consequently transferred directly to Vaikuṇṭhaloka, which is described here as  param . In this verse Vidura asks Maitreya, the disciple of Bṛhaspati, about the different achievements of the Pracetās.
TEXT 3
मैत्रेय उवाच
प्रचेतसोऽन्तरुदधौ पितुरादेशकारिणः । 
    जपयज्ञेन तपसा पुरञ्जनमतोषयन् ॥ ३ ॥
maitreya uvāca 
    pracetaso 'ntar udadhau 
    pitur ādeśa-kāriṇaḥ 
    japa-yajñena tapasā 
    purañjanam atoṣayan
maitreyaḥ uvāca —Maitreya said;  pracetasaḥ —the Pracetās;  antaḥ —within;  udadhau —the sea;  pituḥ —of their father;  ādeśa-kāriṇaḥ —the order carriers;  japa-yajñena —by chanting  mantras ;  tapasā —under severe austerities;  puram-janam —the Supreme Personality of Godhead;  atoṣayan —satisfied.
TRANSLATION
The great sage Maitreya said: The sons of King Prācīnabarhi, known as the Pracetās, underwent severe austerities within the seawater to carry out the order of their father. By chanting and repeating the  mantras  given by Lord Śiva, they were able to satisfy Lord Viṣṇu, the Supreme Personality of Godhead.
PURPORT
One can offer prayers to the Supreme Personality of Godhead directly, but if one repeats the prayers offered by great devotees like Lord Śiva and Lord Brahmā, or if one follows in the footsteps of great personalities, one can please the Supreme Personality of Godhead very easily. For instance, we sometimes chant this  mantra  of  Brahma-saṁhitā :
cintāmaṇi-prakara-sadmasu kalpa-vṛkṣa- 
    lakṣāvṛteṣu surabhīr abhipālayantam 
    lakṣmī-sahasra-śata-sambhrama-sevyamānam 
    govindam ādi-puruṣam tam aham bhajāmi