Not quite spirit guides, but in the ball park...
Carl Jung addresses his Soul
This audio/video is sometimes difficult to hear but, if one clicks the top, and goes to YouTube video, there's a transcription of it.
This is Carl Jung addressing his Soul, or perhaps "Higher Self" or "Over Soul" would be a better description.
There are many views on how the notion of a Soul (capital "S") should be regarded. One holds that the person on Earth is no more his entire being than a finger tip is the entire physical body. Re-uniting the finger tip with the rest of the body (the "lower soul" with the "Higher Soul"), according to some, will occur at the end of the person's physical life. Others attempt this connection in this life through prayer, meditation, and other mental/spiritual disciplines.
In Scientology, there is no "Higher Self" or "Higher Soul" recognized, and Scientologists tend to see themselves as the compete expression of their being, They are "thetans" who proudly announce that they do not have a soul but are a soul. Yet, what if there is a Higher Soul, and Scientologists have cut themselves off from that? The result: many little Scientologists with giant egos, cut off from further spiritual exploration that may have made then whole.
Years ago, I even experimented ("squirrelling") with this area, using the basic format of an auditing session. The client ("pc"), after a brief description/discussion of the notion of a Higher Self, was asked if there was (forgive the Scientologese, it was a long time ago) an "ARC break" with the Higher Self, with idea of opening a line of communication. It was interesting but not earth-shaking.
It's perhaps noteworthy that Aleister Crowley wrote of "the knowledge and conversation with one's Holy Guardian Angel" as an objective of Magic(k)al study and exercise. Crowley, towards the end of his life, admitted that his "Holy Guardian Angel" may not have been a separate being, but an aspect of his own mind.
(And to Scientologists reading this. No, this is not about "BTs.")
Hubbard wrote (in the 1940s) of his Guardian Angel, whom he named, and seemed to regard her (it was a female) as a separate being.
During the amphetamine inspired loose-lipped days of 1952, Hubbard briefly mentioned that a group could have a "Guardian angel" and then, as far as I know, never mentioned the subject again.
In any event, this audio/visio by Jung is worth hearing, IMO. It does appear the Jung regarded himself as the lesser expression of a greater Being (no matter how one wishes to word it), one with which he wished to re-acquaint himself.
This is one of several "occult" ideas that Hubbard (at times at least) seemed to take seriously himself, but which he blocked Scientologists from exploring.