स्वानुभूतानि दुःखानि स्वात्मैव त्यक्तुमिच्छति ।तेनात्मैवात्मविज्ञाने हेतुरेकः परः स्मृतः
In plain words
One's own self alone wishes to abandon the sorrows it has itself experienced; therefore the self alone is held to be the one supreme cause in the knowledge of the self.