Have you noticed that sometimes you meet someone, and for no reason, you don't want to talk to them? Whereas with some other people whom you have not met so often, you still feel closeness with them and feel comfortable. This is because of the positive energy. Meditation creates positive and harmonious energy around us.
It helps one to be in the present moment. The mind vacillates between the past and the future. We are either angry about the past or anxious about the future all the time. So meditation helps keep the mind from swinging between the past and the future to be more in the present. Apart from the health benefits, meditation improves concentration. It improves the way you perceive things. It brings clarity to the mind.