Meditation, specifically Mantra Meditation. Using a simple neutral mantra to add to the rhythm of the breathing. This also begins to create a mind control that creates some space in our thinking. It is in the mental stillness that we can go deeper into ourself. The key to Mantra Meditation is the breathing and adding to the breathing a simple mantra. There are many mantra that are used by people. Usually the simpler the better. One universal mantra is 'So 'ham'. It is pronounced 'so - hum'. It sounds similar to the breathing. In Sanskrit is means, 'I am that'. It is centred around the words 'I am'. In many cultures the word 'I am' has a deep meaning of unity, as all people can say it, it is not exclusive. And of course 'That" is everything else, this simply confirms the unity of all.
The procedure is to be comfortable. Many find sitting on the floor less stressful on the heart, assuming a reasonable upright posture, closing the eyes and think 'So' on the 'in' breath and 'hum' on the out breath. That is all it is. The purpose is to begin to quieten the flow of thoughts and to create moments of inner stillness. Just moments are sufficient to begin to allow o deeper awareness to appear as the 'monkey mind' of thoughts slow down.