Why do we do pradakhin's in temple..?

According to hindu culture right side is considered as sacred and god is said to be situated on your right side of your body and even in temples you can see that god always blesses you with his right hand.

And the power of the god resides in his right side.

So when you do pradakshnam, your right side Meets the direction of gods right side which in turn sends power to your right side.