B.G 2.59
विषया विनिवर्तन्ते निराहारस्य देहिनः। रसवर्जं रसोप्यस्य परं दृष्ट्वा निवर्तते ॥५९॥
viṣayā vinivartantē nirāhārasya dēhinaḥ। rasavarjaṁ rasōpyasya paraṁ dr̥ṣṭvā nivartatē ॥59॥
The interest in material topic retreats by fasting for the one with the body. But even that avoidance of taste for taste, i.e. passion for passion, disappears by seeing that Devine lord.
Gīta Bhāshya 2.59
By fasting, one can only control senses. Only with transcendental knowledge does the interest in material topics disappear. 'rasa' is used here to mean 'passion' in general, and not taste specifically.
The knowledge responsible for these characteristics does not come without effort is conveyed by the previous (three) verses.
By staying without food, one gets only the ability to control material pleasures. Interest is other material topics or the interest in taste does not disappear. That retreats only by the transcendental knowledge - is conveyed by 'viṣayā' verse.
"The capable individuals win over the senses by abstaining from food. But, by staying away from the taste, their interest in taste only grows."
-states a proverb from Bhagavata Purana.
'rasa' word is used here to convey passion (rāga).
