Today is international yoga day. A recognition with more publicity for the science taught by our ancestors.
A link below takes us to safety guidelines to be followed for practicing yoga. No amount of information is a substitute for teacher's advice. Just for information.
http://www.wailana.com/yoga/asanas/guidelines
Yesterday, I heard a lecture from which I learnt that doing yoga helps us to harmonize our thoughts and helps to have more concentration. A practical session for 10 minutes during the lecture also made me to realize the same. All participants were asked to close the eyes gently, to sit relaxingly, to concentrate inhalation and exhalation at the nose entrance. After 10 minutes, after rubbing the palms and touching the eyes, we opened the eyes. The question asked was, how much time we concentrated and observed inhalation/exhalation.
I pondered over this later also and thought that this practice will help us to realize about ourselves and try to get more concentration with practice.