Where's the key

We use to be unhappy for something which is not in our orders. 

Everyone is selfish especially in love. 

The beloved one wish to be always being loved by someone within commit themselves to others. Whoever giving love one always look forward to someone's love with all the commitments & promises. 

Somehow it's just like a padlock. The lock cannot be opened without the key & it will be useless to a key if without the lock. 

Appreciate when meeting the padlock & key. It might be the only one you ever met in your life.