SB 11.18.9
evam cirnena tapasa
munir dhamani-santatah
mam tapo-mayam aradhya
rsi-lokad upaiti mam
Translation:
The saintly vanaprastha, practicing severe penances and accepting only the bare necessities of life, becomes so emaciated that he appears to be mere skin and bones. Thus worshiping Me through severe penances, he goes to the Maharloka planet and then directly achieves Me.
Purport:
A vanaprastha who develops pure devotional service achieves the Supreme Lord, Krsna, while in the vanaprastha stage of life. One who does not become completely Krsna conscious, however, first goes to the planet Maharloka, or Rsiloka, and from there directly achieves Lord Krsna.
One achieves Maharloka, or Rsiloka, through strict observance of positive and negative regulations. However, without developing a taste for chanting and hearing the glories of the Lord (sravanam kirtanam visnoh), it is not possible to achieve the perfect liberation of going back home, back to Godhead. Therefore, on the Maharloka planet the unsuccessful sage gives more attention to chanting and hearing, and thus he gradually develops pure love of Godhead.