Very serious question about Auras?

I just recently started my fall semester at my college and I noticed something odd. I was watching my philosophy teacher and I noticed that every time he told a joke, which they were hilarious, I noticed a white glow around him. I thought it was my eyes playing tricks on me. Today in my Psychology class I saw the same thing. A white outline around my teacher, however I had a feeling it was actually blue. Even though I saw white I just had a feeling it was actually blue. Like I was having a hard time focusing on seeing the light outline. It was weird.

So like I came home today and looked it up, white meant something about being spiritually inclined or evolved and blue meant emotional or something. I think I'm wrong about my philosophy teacher because as far as I know he's an Atheist but he has a very strict code of Ethics. Is it possible for non-religious people to have white auras? I know its possible to be spiritual without religion, I do astral projection occasionally and I have no religious affiliation or a belief in a higher power. My psychology teacher is very giddy and seems to know a bit about new age spiritualism, she mentioned a lot of the meditation and OBE techniques today as an example of the power of human thought.

Is it possible I'm just seeing things or am I seriously seeing some weird **** lol. And no I don't do drugs. Well I don't use hallucinogens at least haha.