Revelation 2:23
“I am he which searcheth the reins and hearts: and I will give unto every one of you according to your works.”
The reins of a horse are used to guide him in the right direction—they are guides. So I have placed guides beside you that whisper words of instruction to lead you. You have your own thoughts and experiences that have taught you what happens when you do this or that; these are like reins as well. You also have your conscience of heart and mind, pricking you if you do something wrong, according to what you know is right and wrong. Also, you have people around you also who might give good suggestions or tips or correction. Then there are circumstances and conditions that direct you, or train you —consequences, people’s reactions, loss, rewards, difficulties, benefits, and so forth
Revelation 2:23
“This whole world is one big school. Sometimes as you rest in bed and contemplate what has happened, these thoughts and feelings inside are like reins that help pull you this way and that way steering you in the right direction. “