The correct answer is 'jana' completing the famous line 'Zindagi ka safar hai yeh kaisa safar, koi samjha nahi, koi jana nahi' from the movie 'Safar.' This means 'Life's journey is such a journey, no one understands it, no one knows it.' 'Pehchana' means to recognize, 'Thikana' means destination, and 'Pana' means to find. Only 'jana' (to know) completes the philosophical rhyme and meaning.