ALL visions have a significance of one kind or another. This power of vision is very important for the yoga and should not be rejected although it is not the most important thing – for the most important thing is the change of the consciousness. All other powers like this of vision should be developed without attachment as parts and aids of the yoga. Visions are not indispensable – they are a help, that is all, when they are of the right kind. page 931 - Letters on Yoga , volume 23 , SABCL