matra-sparshas tu kaunteya shitoshna-sukha-duhkha-dah
agamapayino’nityas tams titikshasva bharata
O son of Kunti, the interaction between the senses and the sense-objects produce the sensations of cold, heat, pleasure and pain. These feelings are temporary, always appearing and then disappearing. Thus, O descendent of Bharata, you must learn to tolerate them.