I've done chakra opening during my mid-teen years. I found while I did have some blockages that it was easy visualising, applying and working through them. I found it easy on moving my consciousness throughout my body or to focus it where I wanted it to. I've been meditating nearly my whole life since childhood w/o knowing what meditation was, doing variations of it. I might've picked it up from TV as I know I did with yoga/fitness when I was probably 9-10. I mainly did it to connect with nature/stars/sky laying outside alone around a hilltop & surroundings in front of my home as I wanted to be part of those mystical/magical atmospheres (so romantic
). I'd meditate on my nightly dreams and with the 'things' I saw but never told. I found it neat when disconnecting--if it was noisey w/ people then forget it or I was thinking too much. I also think it's b/c I wanted to disconnect from my home. While my lucid/dreams, projections, sleep paralysis, 'empathy' and other kinds were always interesting/and or frightening, I found that during that chakra opening time they were all very different and more easily understood with more insightfulness. Even though I was apathetic at the time I couldn't 100% shut out people or try to reach out at times. I noticed that at the spinal base it would 'pulse' hard successively even though I wasn't working on it (forget what I was working on
). It wasn't painful but I can't describe it as I forgot it! lol I'll say that it made me very aware of my body when I wasn't actively trying to be. I'm mostly in my head so it was weird for me to be so conscious of it. I'd also feel intense or light full spinal tingling, body tingling/buzzing, flushing sensations hot/cold. I began seeing auras a bit and not thoroughly, was skeptical of it though excited, and tried it out on people. At one point, out of curiousity and seeing a 'dark spot' on a hairdresser assisant's leg while she was washing me, I told her that I saw a spot that felt/looked like it was in pain and pointed out the exact spot. I hadn't been aware of her prior, hadn't seen her limp and just randomly chose. She became excited that I was right which made me happy but irked me as then she then wanted me to do more...I didn't like it and never did that again with another person for a lonnnng time. When I do things of that nature with people, I turn out to be right (from using w/e means) and people make a big deal of it...I've learned to limit/stop. I mainly told people, mostly unconnected to me, in order to better ascertain WTF I was going through.It wasn't all due to Chakra Opening but it enhanced it all, I think.
I don't trust that comparison of the Chakra to the Enneagram as we're all different regardless of Types. We may or may not be 'average' of our Types (barely skimmed Type Four though) and I saw no difference w/ healthier ranges. From what I remember, if one is going to actively start working on their Chakras some people say a person can start on any chakra...others say it's best to start with the root base chakra and work your way up as the root base and spine is where your energy filters out to the rest of your chakras (and fills out the subtle energy body). I can't recall all that I've read but I remember thinking it best b/c you clear blockages as you go up and the energy flows up and up through each one (nvm chakra, what about the whole energy body from minor toe points up to the rest?) Imagine if you open your throat chakra but you have blockages from your heart, your navel or your root. The energy you are raising might become 'stuck' travelling up to get to your heart as you open it. I think that's why I got 'pulses' when I started it off incorrectly then amended that. Hope I made sense or not thought a total freak
Great luck with your experiences with it all, whether you believe in it or just use it to positively change yourself 
