SB 11.25.1
sri-bhagavan uvaca
gunanam asammisranam
puman yena yatha bhavet
tan me purusa-varyedam
upadharaya samsatah
Translation:
The Supreme Personality of Godhead said: O best among men, please listen as I describe to you how the living entity attains a particular nature by association with individual material modes.
Purport:
The word asammisra indicates that which is not mixed with anything else. Lord Krsna now explains how each of the three material modes (goodness, passion and ignorance), acting separately, causes a conditioned soul to manifest a particular type of existence. The living entity is ultimately transcendental to the modes of nature, being part and parcel of Lord Krsna, but in conditioned life he manifests material qualities. This is described in the following verses.