I have had some interesting encounters with chakras. One time I was following a guided meditation for opening them and I saw them as certain colors/sizes. And they happened to be the exact colors that people report them to be. The person would name the chakra and I would envision it and it's size correlated with its expression in my life perfectly. For instance she named the solar plexus chakra and I saw it as small and yellow, kind of fading/dead. Then I later learned it was indeed yellow and dealt with self-esteem (which explains why is was so small). So I'm definitely a believer in chakras. Maybe I need to meditate on my crown chakra like you said. Will try that tonight along with another AP attempt.
Thanks for taking an interest!