svargiṇo 'py etam icchanti
lokaṁ nirayiṇas tathā
sādhakaṁ jñāna-bhaktibhyām
ubhayaṁ tad-asādhakam
svargiṇaḥ - the residents of the heavenly planets; api - even; etam - this; icchanti - desire; lokam - earth planet; nirayiṇaḥ - the residents of hell; tathā - in the same way; sādhakam - leading to achievement; jñāna-bhaktibhyām - of transcendental knowledge and love of Godhead; ubhayam - both (heaven and hell); tat - for that perfection; asādhakam - not useful.
Śrīla Jīva Gosvāmī points out that in material heaven one becomes absorbed in extraordinary sense gratification and in hell one is absorbed in suffering. In both cases there is little impetus to acquire transcendental knowledge or pure love of Godhead. Excessive suffering or excessive enjoyment are thus impediments to spiritual advancement.