Rahu -it perceives exactly and is sure of what to do in a given situation, in other words, is decisive and focused on the cause and has an unwavering, undaunting quality. Since Rahu does not own a sign, it's adaptable but can still manifest its intrinsic qualities irrespective of the association or placement, the best placement is the Kendra or Trikona. It operates on the mental plane as it represents the severed head, this severance may be severance from attachment if it manifests positively, it should be seen and observed as an axis.
The problem is that Rahu is considered to be the astrological dustbin, can
cancerous growth be attributed to Rahu Alone absolute" No". Jupiter
is more responsible for expanding it for it owns the arterial system and partly
owns the lymphatic system. Rahu expresses itself in two ways sudden and harsh
and in a subtler gradual way simultaneously, its the self-sacrificing or
self-destructive mode of Rahu that assimilates in the form of chaos and upheavals
in the life of the most, Since this part is visible one tends to ignore the
subtle and gradual inner working of the Rahu. Lal Kitab refers to Rahu as the
hidden molten activity of the Volcano, while Ketu is considered to be a dust
storm visible and plain yet somewhat destructive. Rahu represents all invasive
outside influences to the physical body, the bacteria, the viruses, and other
pollutants while Saturn is a fungal, degenerative, and wasting experience in
the body. In our body cells replace new cells it is an ongoing process but the
cancerous cells refuse to be replaced and start multiplying creating a
cancerous growth, since the attributes are similar to the nature of Rahu most
astrologers attribute Rahu with it, but in real terms, it is just a part of the
combination not the absolute of it.
Wisdom and higher intelligence are traits attributed to Jupiter, But intellect
and learning come from mercury, perception, and emotions from Moon, logic and
factual information from Mars, Saturn provides practical knowledge and common
sense, Rahu prenomination, and to an extent intuition also.
Rahu and the spiritual effect it provides -it gets the kind of influence from
the associated planets, as we all know Rahu is the shadow of associated planets
or the sign lord, the shadow or image it will create will be by the influence
it has. Example in 5th Rahu with 5th or 8th lord is a potent combination as
it's in the mantra Sthaan ( house) influenced by the lord of same or under the
influence of 8th lord which represents tantra and end of physical matter or in
other words end of the physical body. Such a Rahu as depicted can be very
spiritual but as the nature of Rahu is of non-conformist it may not conform to
traditions but is bound to explore the horizons more so like the exponents of
the bhakti movement, the purpose here is that irrespective of the method it can
get the desired spiritual progress provided it has the support of desired house
lords. In mythology, I can remember a likewise character akin to Rahu is Ravan
who sacrificed his head to lord shiva, in the Samundar Manthan story Rahu being
focused and intuitive could guess a plot of deceit while everyone else
including the devas, was hypnotized and mesmerized by the beauty and nuances of
Mohini avatar Rahu was the only planet that was unfazed to all this, therefore,
it portrays the intensity and focuses the way people link Rahu to lust is
totally out of context. Now he sat between the two luminaries knowing fully
well that in between the luminaries it has best chance to be discovered and so
it was, but in the meanwhile, it had already partaken the elixir thus the
immortality but his head was severed off by Lord Vishnu for this act of
transversing beyond the set of rules( the unwritten code ), but by doing it all,
(a) Guessing the plan of action (b) being immune to surroundings (c)
Sacrificing himself, Rahu attained the Highest supreme state and was thus
allocated the status of Shadow planet it reflects the influence that is given
to it. Rahu no doubt can be your best bet to spirituality l provided it's with
house lords or planets which support spirituality.