It’s that short-lived happiness, which empowers us to bear; long-lasting pain in living.
Most people are unhappy since they fail to get what they want in life. However, even when they actually get what they want, their happiness is short-lived because very soon they raise the bar to a higher level and again start struggling to achieve the next level. Their happiness level thus comes back to the original level as before.
Beauty is a short-lived tyranny.