Bhagavad Gita 15.9

Presiding over ear, eye, touch, taste and smell, and over the mind, the person enjoys the objects.

श्रोत्रं चक्षुः स्पर्शनं च रसनं घ्राणमेव च ।
अधिष्ठाय मनश्चायं विषयानुपसेवते ॥

srotram caksuh sparsanam ca rasanam ghranam eva ca |
adhisthaya manas cayam visayan upasevate ||

Presiding over ear, eye, touch, taste and smell, and over the mind, the person enjoys the objects.

Thousands of years ago, this verse outlined the absolute foundation of human psychology: every single thing we experience in a day is filtered through our five physical senses and processed by our mind ( manas ). Your entire week is lived through this sensory network. When you feel mentally overwhelmed, modern psychology teaches you to manage this exact system in two practical ways. First, change the input when you can. If your nervous system is exhausted, turn off the loud television, walk away from the stressful environment, or remove a triggering smell (just as Leela learned in the previous story). Second, change the interpretation when you must. When you cannot change the stressful environment around you, use psychological tools (like CBT) to change the story your mind is telling you about it. But there is a clear limit. Managing what your senses take in, and how you think, is good daily care, but it cannot heal a badly injured nervous system. Deep breathing and a positive mindset do not replace a clinic for severe PTSD, or medicine for psychosis.