Releasing Entity Attachments

I'm a level II Usui reiki practitioner and traditionalist - I love the Usui method and practice it fully, with a few other frequencies I'm attuned to.

I had a client witness in this mind's eye a squid like figure flying across his visual field. I could tell he was purging and applied another frequency to ease the discomfort he was experiencing. I intuited that this was the release of an entity attachment and I'm so intrigued by this.

Has anyone else experienced anything else like this with a client before? I'm curious to know if there are any other implications that come with something like this?