Kaivalya

Kaivalya (कैवल्य), is the ultimate goal of Raja yoga and means "solitude", "detachment" or "isolation", a vrddhi-derivation from kevala "alone, isolated". It is the isolation of purusha from prakṛti, and subsequent liberation from rebirth.

Patanjali

The 34 Yoga Sutras of Patanjali of the fourth chapter deal with impressions left by our endless cycles of birth and the rationale behind the necessity of erasing such impressions. It portrays the yogi, who has attained kaivalya, as an entity who has gained independence from all bondages and achieved the absolute true consciousness or ritambhara prajna described in the Samadhi Pada.

"…Or, to look from another angle, the power of pure consciousness settles in its own pure nature." —Kaivalya Pada: Sutra 34.

"Only the minds born of meditation are free from karmic impressions." —Kaivalya Pada: Sutra 6.

"Since the desire to live is eternal, impressions are also beginningless. The impressions being held together by cause, effect, basis and support, they disappear with the disappearance of these four." —Kaivalya Pada: Sutra 10-11.