Ahhh. It's a very simple philosophy. We wear white in Kundalini Yoga classes because it expands our auric field by at least one foot. If I can raise my consciousness even more by wearing white during class. I am all game! plus I really am a rule follower in some regards. Kundalini Yoga is not a Religion. It is a Science. Plus wearing white makes you want to keep up in staying clean, you hold yourself in a higher regard (because your trying not to dirty yourself for one. lol) There is a certain radiance with wearing complete white. For me, I see auras. I can see that "halo" effect around people. It's fasinating. From my underwear to my head garment is white when practicing & teaching Kundalini Yoga.
As Yogi Bhajan says
(Yogi Bhajan brought Kundalini to the West and shared with us this wonderful gift)
"We wear white because it's a simple scientific fact that every piece of matter or material has a foot and a half aura. Every animal has a three and a half foot aura. Every human has a nine foot aura. And if we wear the cotton and we wear the white, this color therapy gives us one extra foot of aura"
"We adopted this color because of our background and to support our development. We ask you to wear white so that you will reflect what is outside and go within yourself—that’s what white clothes can do for you.
"When you are totally dressed in white, the entire face reflects, and then it is very difficult to become intimate. Wearing white demands that the other person deal with you on a higher level, because that person has to concentrate himself in order to advance.
Wearing white is the total balance of all the chakra's - seven colors of the auric field.