Here is the fruit of the entire teaching. Whoever truly understands Purusha and Prakriti with its gunas — that person is never born again. It does not matter whether they are a householder or a renunciant, in a city or a forest.
The phrase 'sarvatha vartamanah' — living in any way whatsoever — is remarkable. The liberation this knowledge brings is not tied to a particular lifestyle. Understanding, not circumstance, is what sets a person free.