'ātmā'-śabde 'svabhāva' kahe, tāte yei rame
ātmārāma jīva yata sthāvara-jaṅgame
ātmā-śabde—by the word ātmā; svabhāva—nature; kahe—is sometimes said; tāte—in that; yei rame—one who takes pleasure; ātmārāma—called ātmārāma; jīva—the living entities; yata—all of them; sthāvara-jaṅgame—the moving and nonmoving.
"Another meaning of the word ātmā is 'one's characteristic nature.' Whoever enjoys his particular type of nature is called ātmārāma. Therefore, all living entities-be they moving or nonmoving-are also called ātmārāma.
Link to this page: https://prabhupadabooks.com/cc/madhya/24/200