You have often heard the Marines say, “Earned, never given!”
 
This is the same mindset and you should have in table tennis. 
When you serve a fast, surprise serve, you are planning for your opponent to return and you are planning to win the rally.
When you loop with your powerful forehand, you are expecting your opponent to return it and you are expecting to loop multiple balls in order to win the rally.
When you push deep and fast to your opponent’s wide forehand, you are expecting a soft opening that you can counterloop.