An interesting & meaningful story for you.
On the very first day of the world, God created the cow. He said to the cow:
"Ah Gu (cow), today I have created you! Your job is to go to the field with the farmer all day long. You will provide the energy to pull things!
You will also provide milk for people to drink!
You are to work all day under the sun. In return, you will eat only grass. For that you have a lifespan of 50 years."
Ah Gu objected.
"What!? I work all day under the sun and I can only eat grass?
On top of that I have to give my milk away!?
This is tough and you want me to live 50 years!? I'll take 20 and you can have the remaining 50 years back." God agreed.
The next day, God created the dog. He said to the dog.
"Ah Kow (dog), I have created you for a purpose. You are to sit all day by the door of your master's house. If anyone come in, you are to bark at them! In return, you will eat your master's leftover. I give you a lifespan of 20 years."
Ah Kow objected.
"What!? I have to sit at the door all day and bark at people, and i can only eat leftovers? This isn't right... I'll take 10 years and you can have the remaining 10 years back." God agreed again.
On the third day, God created the monkey. He said to the monkey.
"Lao Kao (monkey), your job is to entertain people. You will make them laugh, act stupid and make faces. You will also do somersaults and swing on trees to amaze them. In return, you will only eat bananas and peanuts. For that, I will give you 20 years."
Naturally the monkey objected.
"What!? I got to make faces and make people laugh? I still have to climb trees and do somersaults? Tell you what... I'll take 10 years, you can have the remaining 10 years back." God agreed again.
On the fourth day, God created human. God said to the human.
"You are my best piece of work. For that you will only have to sleep, eat and play, sleep, eat and play and do nothing else. You will eat all the best things and play all the best toys. All you need to do is to enjoy life, and for this, I give you 20 years."
Just like the rest, human objected.
"What? I only have to relax and enjoy the best in life and I only have 20 years?
Tell you what. You got back 30 years from Ah Gu, 10 years from Ah Kow and 10 years from Lao Kao and you probably don't know what to do with all these lives. Why not I take all of them and have 70 years to live?"
Being a kind God, naturally He agreed.
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AND THAT IS WHY
We eat, sleep, play and enjoy the first 20 years of our lives when growing up.
Work for the next 30 years to raise the family.
Sit outside the door and bark at people for the next 10 years of our life when retired.
And finally make faces and perform monkey tricks to entertain our grandchildren for the final 10 years of our lives.
GET IT?????