A man should try to see and know nimself by mastering his mind, intelligence and senses; for, he himself is his own friend and himself is his enemy.
आत्मनाऽऽत्मानमन्विच्छेन्मनोबुद्धीन्द्रियैर्यतैः। आत्मा ह्येवात्मनो बन्धुरात्मैव रिपुरात्मनः॥