They (the elevated souls live on the moon) eventually return to earth. This means that on the moon there are higher classes of living beings, though they may not be perceived by the gross senses. BG 1972 purports

Expressions researched:
"They eventually return to earth. This means that on the moon there are higher classes of living beings, though they may not be perceived by the gross senses"

Bhagavad-gita As it is

BG Chapters 7 - 12

In the Third Canto of Śrīmad-Bhāgavatam we are informed that those who are expert in fruitive activities and sacrificial methods on earth attain to the moon at death. These elevated souls live on the moon for about 10,000 years (by demigod calculations) and enjoy life by drinking soma-rasa. They eventually return to earth. This means that on the moon there are higher classes of living beings, though they may not be perceived by the gross senses.

BG 8.25 (1972), Translation and Purport

The mystic who passes away from this world during the smoke, the night, the moonlight fortnight, or in the six months when the sun passes to the south, or who reaches the moon planet, again comes back.

In the Third Canto of Śrīmad-Bhāgavatam we are informed that those who are expert in fruitive activities and sacrificial methods on earth attain to the moon at death. These elevated souls live on the moon for about 10,000 years (by demigod calculations) and enjoy life by drinking soma-rasa. They eventually return to earth. This means that on the moon there are higher classes of living beings, though they may not be perceived by the gross senses.