बन्धुरात्मात्मनस्तस्य येनात्मैवात्मना जितः | अनात्मनस्तु शत्रुत्वे वर्तेतात्मैव शत्रुवत्
bandhurātmātmanastasya yenātmaivātmanā jitaḥ . anātmanastu śatrutve vartetātmaiva śatruvat
对于那些通过自我征服了自我的人，他的自我便是自我的朋友。但对于那些未能征服自我的人，他的自我本身就会像敌人一样行事。
Of him, by whom has been conered his very self by the self, his self is the friend of his self. But, for one who has not conered his self, his self itself acts inimically like an enemy.
通过高级心意征服低级心意。低级心意是你的敌人，高级心意是你的朋友。如果你与高级心意建立友谊，你就能相当容易地制服低级心意。低级心意充满激性（Rajas）和惰性（Tamas），而高级心意充满悦性（Sattva）或纯净。真我（Ātman）是那些自制并已制服低级心意和感官的人的朋友。但真我（Ātman）是那些缺乏自制、未能制服低级心意和感官的人的敌人。正如外部敌人会伤害他一样，他自己的（低级）自我（心意）也会伤害他。低级心意会严重伤害他。至高真我（Paramātmā）是主要的真我（Ātman）。心意也是自我。这是次要的自我。
Coner the lower mind through the higher mind. The lower mind is your enemy. The higher mind is your friend. If you make friendship with the higher mind you can subdue the lower mind ite easily. The lower mind is filled with Rajas and Tamas (passion and darkness). The higher mind is filled with Sattva or purity.The Self is the friend of one who is selfcontrolled? and who has subjugated the lower mind and the senses. But the Self is an enemy of one who has no selfrestraint? and who has not subdued the lower mind and the senses. Just as an external enemy does harm to him? so also his own (lower) self (mind) does harm to him. The lower mind injures him severely. The highest Self or Atman is the primary Self. Mind also is self. This is the secondary self.