Someone probably told you to think positive when you were in a difficult situation. That's because the power of positive thinking is something that is a widely held belief.
Most people readily accept that when you give off positive energy, you can infect others with that positive energy and they will give that energy back to you. Basically it is the idea that what you put out there will come back to you.
Positive influences are all around us. They exist because people love to feel good.
People prefer the positive to the negative. You can probably relate to this. You would probably rather be around someone cheerful and energetic than someone depressed and down.
People see that thinking positive and having a positive attitude can play a big role in your life. Positive thinking can be very powerful and by putting it into practice in your life, you can reap the positive benefits.