Something we hear, temporary, the music, this, that, touch, smell give some temporary pleasure, but that is flickering. It disappears like the bubbles. How long do the bubbles last? They don’t last very long.
Materialism cannot satisfy us. It could satisfy our senses, our mind. Some entertainment, some body satisfaction, mind satisfaction - but soul’s satisfaction? Not possible. The soul could be only satisfied when the soul makes Krishna the object.