sattva-saá¹…gÄd ṛṣīn devÄn
rajasÄsura-mÄnuá¹£Än
tamasÄ bhÅ«ta-tiryaktvaá¹
bhrÄmito yÄti karmabhiḥ
sattva-saá¹…gÄt - by association with the mode of goodness; ṛṣīn - to the sages; devÄn - to the demigods; rajasÄ - by the mode of passion; asura - to the demons; mÄnuá¹£Än - and to human beings; tamasÄ - by the mode of ignorance; bhÅ«ta - to the ghostly spirits; tiryaktvam - or the animal kingdom; bhrÄmitaḥ - made to wander; yÄti - he goes; karmabhiḥ - because of his fruitive activities.
The word tiryaktvam means “the status of an animal,†which includes all lower forms of life, such as beasts, birds, insects, fish and plants.