In Brahmaloka there is an unlimited number of airplanes that are controlled not by yantra (machine) but mantra (psychic action). Because of the existence of the mind and intelligence on Brahmaloka, its residents have feelings of happiness and distress, but there is no cause of lamentation from old age, death, fear or distress. They feel sympathy, however, for the suffering living beings who are consumed in the fire of annihilation. The residents of Brahmaloka do not have gross material bodies to change at death, but they transform their subtle bodies into spiritual bodies and thus enter the spiritual sky. The residents of Brahmaloka can attain perfection in three different ways. Virtuous persons who reach Brahmaloka by dint of their pious work become masters of various planets after the resurrection of Brahmā, those who have worshiped Garbhodakaśāyī Viṣṇu are liberated with Brahmā, and those who are pure devotees of the Personality of Godhead at once push through the covering of the universe and enter the spiritual sky.
Ref >> Srila Prabhupada Vani.