Meditation mean that your concentration (focus) on a light or third eye of human being and absorb himself into positive energy come from universe.All the external blossom give up and in himself absorb in energy.
The brain memory become zero when focus on third eye of human being.
Some mantra and sound to be needed.
Mantra like-Ek om kar, MOOL Mantra,OM NAMAH SHIVAAY,OM , etc.
Sound like- SINGING BOWL, Sankha etc.
With the help mantra and sound,Energy come from universe to be double,easy to absorbed and golden ball on the head increase it’s shine.
The soul’s ura to be increase.