I recently wrote this blog article addressing the differences between the HGA and Head Spirit as the two are commonly conflated. Admittedly, I held the erroneous belief that the two were the same for quite some time. This article is by no means the final word and I did omit somethings from the topic such as natal angels because they are not considered the HGA (although I consider them to be the HGA). Anyway, enjoy the article. Don't let an opinion get your panties in a twist.
https://vodousorcerer.blogspot.com/2018 ... s-hga.html