Bhagavad Gita 5.22 · Krishna
Pleasures that end in sorrow
ये हि संस्पर्शजा भोगा दुःखयोनय एव ते।
आद्यन्तवन्तः कौन्तेय न तेषु रमते बुधः॥
ye hi saṃsparśajā bhogā duḥkhayonaya eva teādyantavantaḥ kaunteya na teṣu ramate budhaḥ
Pleasures born of contact are wombs of sorrow. They begin and they end, son of Kunti. The wise do not delight in them.
What it means
Krishna is honest about pleasure. Pleasures born from contact with things are real, but they begin and they end. And when they end, they leave longing, even sorrow, behind. That's why the wise don't build their happiness on them. They enjoy, but they don't depend.
The story
Arjuna knows royal feasts, victory celebrations, the thrill of the hunt. All wonderful, all fleeting. Krishna is guiding him to a joy that doesn't fade, so that losing pleasures won't devastate him.
In your life
Picture the last night of a perfect holiday, already sad it's ending. Enjoy pleasures fully, but don't lean your whole weight on them. Notice one pleasure today, enjoy it, and let it go.
Enjoy pleasures. Don't lean on them.