Your mind needs food. It needs positive food. The best way to keep a healthy mind is to feed it with positive things. If you feed your mind with positive thoughts, with positive events, instead of negative events, you will get a happy mind.
A happy person is someone with a happy mind. You cannot be happy inside and be unhappy outside. Your outside life is a reflection of what you are feeling inside. You can make your mind happy. You can make your mind sad. It is your choice.
You can make your mind happy by focusing on positive things, by focusing on the good things in any situation, by doing the right things, by helping those in need, by putting other people first, by loving people unconditionally, by being grateful, and by forgiving the people who have wronged you. When you feed your mind with these things, your mind will never know sickness. You will have a healthy mind. You will have a sound mind. You will have a productive mind.
Make sure you are always working to protect your mind from bad people, people who will never find anything good to tell you. Stay away from those people.
Feeding your mind with positive thoughts does not mean that you are going to be happy all the time. That is not the case. It means even when you are not happy, you still find a way to make the situation a positive one. That is, you never allow the negativity around to decide how you run your life.
Always focus on the positive things in your life. Always appreciate what you have, and where you are in life. Feed your mind with positive thoughts. Try to develop the habit of thinking in positive ways. When you see a negative thing or it happens to you, try to picture it in a positive way. In doing so, you have created a positive picture of that event in your mind.
You are created to be a positive person, not a negative person. Stay positive!