When someone smites, they hit or strike something with force. It can also mean to affect someone or something with a powerful feeling or emotion.
Smiting can be strong and forceful, or it can be about having a big effect on someone's feelings.
Examples:
He smites the ball with his bat.
The storm smites the town with strong winds.
The hero smites the dragon with his sword.
She smites the table with her fist when she's angry.
The sad movie smites my heart.
The mighty warrior smites his enemies with great power.