नीरात्क्षीरं पृथक्कृत्य हंसो भवति नान्यथा ।स्थूलादेः स्वं पृथक्कृत्य मुक्तो भवति नान्यथा ॥ ७६ ॥
In plain words
The swan takes the milk and leaves the water — that is how it becomes a swan, and there is no other way. Separate yourself out from the gross body and all that follows it, and you become free — and there is no other way.
Close to the Sanskrit
Having separated the milk from the water, a swan becomes [a swan]; not otherwise. Having separated one's own self from the gross body and the rest, one becomes liberated; not otherwise.