In Bhagavad-gita Lord Krsna informs Arjuna that the pains and pleasures experienced in relation to the body are temporary; they come and go.
भगवद्गीता मे श्रीकृष्ण अर्जुन को वताते है कि शरीर के सुख-दुख का अनुभव क्षणिक है, वे तो आते जाते रहते है।