guṇāguṇatvasya parāvarasya

tavan-until that time; ayam-this; vyavaharah-the artificial designations (being fat or skinny, or belonging to the demigods or human beings); sada-always; avih-manifesting; ksetra-jna-of the living entity; saksyah-testimony; bhavati-is; sthula-suksmah-fat and skinny; tasmat-therefore; manah-the mind; liṅgam-the cause; adah-this; vadanti-they say; guna-agunatvasya-of being absorbed in material qualities or devoid of material qualities; para-avarasya-and of lower and higher conditions of life.