Who can go Back to Godhead and who Does not Go Back to Godhead?

SB 4.12.36

The self-effulgent Vaikuṇṭha planets, by whose illumination alone all the illuminating planets within this material world give off reflected light, cannot be reached by those who are not merciful to other living entities. Only persons who constantly engage in welfare activities for other living entities can reach the Vaikuṇṭha planets.

SB 4.12.37

Persons who are peaceful, equipoised, cleansed and purified, and who know the art of pleasing all other living entities, keep friendship only with devotees of the Lord; they alone can very easily achieve the perfection of going back home, back to Godhead.