In this type of meditation you try to blank the mind by slowly eliminating the thoughts that naturally intrude and crowd upon the mind.
This state of mind is called 'Alfa state' because it is said, that during this state your brain waves are measured in the Encephalogramme as Alfa level of frequencies.
Sit in a meditation posture. That should be both steady and comfortable.
Then slowly empty the mind by eleminating the thoughts taking care not allowing them to creap again. But you should be cautious not to allow stress to do this. Practice regularly for 'half an hour', for some time. It depends upon the progress you make.
Try it. It may help you.
This will improve your memory and health. Sure.
