I think that Laura has used salt as a protective measure in the past and asked the Cs about it.
Here are some examples:
Session 28 October 1994
Q: (L) The ideas of candle burning, salt, sage, shamanistic rituals and so forth? Is all this useless?
A: Maybe.
Q: (L) Is sage not useful?
A: You are learning; remember when we say "good no ritual"?
Q: (L) In other words, your knowledge and your strength which comes from your knowledge and
knowing is the point and the protection?
A: Precisely. This is extremely important.
Here's a humorous Cs answer:
Q: (L) Well, this article I was reading said that different people used several techniques where they
think it has helped them to halt or avoid abduction by "aliens." One is to generate an "internal" sound,
a high-pitched "thought hum," and another is to invoke angelic spirits such as the Archangel Michael,
and another is to "Just Say No," and these people think they have avoided being abducted thereby. Are
any of these usable techniques?
A: Potpourri.
Q: (T) Sweet smelling dried flowers are potpourri.
A: Sage, salt, ooohm, any other rituals you like?
Q: (L) In other words, nothing works? (T) It's not going to stop them! I keep a heavy shield around the
house and all that stuff and they still get through!
A: How about the hula hoop dance with green peppers stuck up your nose! [Hilarious laughter]
Laura would have to explain how she feels about the way salt may be used as a protective/preventative measure I think.
The Ra material which was mentioned by the Cs does talk about salt in The Law of One, Book IV, Session 95:
Questioner: I am assuming that we would prepare the blessed water the
same as we prepare the water for the instrument to drink after a session and
would then wipe the windows and doors with this water. This would
probably have to be done in a bucket. I would like to know if this is correct,
and what was meant by salting the windows and doors?
Ra: I am Ra. Firstly, you may bless the water yourselves or may request socalled
holy water from any blessed place; that is, blessed by intention.
Secondly, the water shall be carefully shaken from the fingers along the sills
of all windows and doors as they have been opened. Thirdly, prior to the
sprinkling of this cleansing, blessing sacrament of water, the salt shall be
trailed along these sills in a line and again allowed to exist in this
configuration for 36 to 48 hours. Then the virgin broom may ritually sweep
the salt out of each window and doorway, sweeping with each stroke the less
fortunate of the vibrations within the dwelling which might find
coexistence with group difficult.
Questioner: I assume that you mean that we should put the salt only on the
outer doorway sills and not on the inner doorway sills in the house. Is that
correct?
Ra: I am Ra. This is correct. We cannot express the nature of salt and water
and garlic with clarity enough to inform you as to the efficacy with which
salt absorbs vibrations which have been requested to move into salt when
salt has been given water. We cannot express the full magical nature of your
water, nor can we express the likeness and attractiveness of the garlic cut to
lower astral forms. The attractiveness is negative and no service-to-self astral
form will accept coexistence with the cut garlic.
Therefore, we offer the suggestions. We also request, carefully, that the
broom be clean and that the garlic be burned. The virginity of the broom is
most efficacious.
The above bold portion seems to hint at some property of salt combined with water that can absorb vibrations. Garlic was mentioned as well.
I couldn't find the percentage of accuracy for the Ra material mentioned by the Cs but here is a reference to the Ra material:
Session 23 October 1994
Q: (L) We want to know about the Ra Material by Elkins, Rueckert and McCarty, where is the Ra Material coming from?
A: Us.
Q: (L) Would you say that the Ra Material comes through a clear channel?
A: Yes.