I believe I've experienced this whirlwind of energy you mentioned several times when astral projecting. I'm not really sure what that's all about, but people often experience it when astral projecting out of their body.
It's also interesting to note that if you've ever heard of reverse speech, our subconscious mind sometimes uses certain words and metaphors in reverse speech. One of the words it sometimes uses is "whirlwind", which is interesting. If you've never heard of reverse speech you can see some of David Oates youtube videos for some examples.