“A person with a sufficiently activated crown chakra does not necessarily achieve illumination for he has yet to learn how to use the activated crown chakra. This is just like having a sophisticated computer but not knowing how to operate it. Once the crown chakra has been sufficiently activated, then you have to do meditation on the light, on the mantra om or amen, and on the intervals between the oms and amens.
Intense concentration should be focused not only on the mantra om or amen but especially on the intervals between the two oms or amens. It is by concentrating on the light and the interval (moment of stillness or silence) between the two oms or amens that illumination or samadhi is achieved!”
Master Choa Kok Sui, Miracles through Pranic Healing, Page 329, Institute for Inner Studies Publishing Foundation, Philippines