Now close the crown centre. The light fades and the colours darken. I visualise two great iron hanger-doors closing over my head. Quickly run through the centres again, making sure that all is quiet. Now, as a final safeguard, visualise wrapping a dark hooded cloak all over your body.
Light can neither get in or out.
All that shines from your aura is that small chink of light from the base chakra. Your aura is closed. You are back to normal. This is a simplified version of the technique that is given in detail in my meditation tape Opening to Auric Light . It is set to the beautiful music of Steinar Lund.