All for a reason

His words sounded like great philosophy.
Seeing me a little down in spirits, my colleague said: “There are certain things beyond our control. Worrying over unavoidable events is like throwing petrol on fire while attempting to douse it.”
“I was just thinking, not worried,” I replied.
But he went on to tell the story of a rat.
Repeatedly troubled by a cat, it went to a sage and told him about its plight. “Don’t worry, I will turn you into a cat,” said the sage. The cat was happy for a few days, but was haunted by a dog. “I will turn you into a deer.” The cheerful deer was chased by a lion. “There you go, now I turn you into a lion,” the sage told the deer. The lion was happy for a few days until it was caught by men and dumped in a circus cage. “Please make me a rat again,” it pleaded with the sage.
“Interesting,” I told him, and remembered an incident that boss SB had told me. He had asked a tiger reserve chief, “Why protect tigers? Let them perish.” The reserve official replied, “The ecological balance is like a jigsaw. You remove one and the entire structure is shaken. Tigers have their own important role.”
We were walking back smiling when I noticed my female friend stare at herself wherever there was a glass door or elevator mirror.
“You look good,” I told her and she replied, “Of course, I always do.”
I did not dare to dispute that, though I was not too sure.
After all, just a minute ago, I was also looking at the mirror and feeling the same way.