कस्त्वं कोऽहं कुत आयातःका मे जननी को मे तातः ।इति परिभावय सर्वमसारंविश्वं त्यक्त्वा स्वप्नविचारम् ॥ २३ ॥
In plain words
Who are you? Who am I? From where have I come? Who is my mother, and who is my father? Contemplate all this and see that worldly life has no core, letting go of the universe as you would a fleeting dream.
Close to the Sanskrit
Who are you? Who am I? From where came I? Who is my mother? Who is my father? Thus contemplate all as without essence, having abandoned the universe as a dream-thought.