Bhagavad Gita · Chapter 3: The Path of Action

Bhagavad Gita 3.43

evaṃ buddheḥ paraṃ buddhvā saṃstabhyātmānamātmanā | jahi śatruṃ mahābāho kāmarūpaṃ durāsadam ||

Knowing in this way what is beyond the understanding, and steadying the self by the self, mighty-armed Arjuna, destroy this enemy in the form of desire, which is so hard to overcome.

Modern context

The chapter closes with a way of working. Know that you are more than your senses, your moods and even your reasoning, and from there steady yourself by yourself. No one else can do this for us. The verse is frank that the enemy is hard to overcome, so setbacks are to be expected and are no proof of failure. What changes the struggle is where one stands in it. A craving looked at from the higher ground of the self loses much of its command.