Jonathan In my opinion the K&C is not necessary to do good magic most magicians that I have met who proclaim this attainment wouldn't know it if there K&C appeared as Pamela Anderson and kissed them on there ass.. I probably know two Magicians that I can say have achieved it and it was over many many years of practice and it wasn't through Liber Samekh etc I am not saying its not valuable its the ultimate goal for any serious magus..
If one can not provide food for oneself, then it would be better to physically get off your {@$$} and figure something out.
If however, the reason you fail to provide food and shelter is that you have "spirits" which is to say psychological complexes or acquired habits that sabotage your efforts, Then rather that direct your magick at the results of attaining a loaf of bread or a night is a shelter, it might be more effective if you work with the "spirits" and that is with balancing out ones inner space, the subconscious mind. The end result of a balanced mind, is the dissolution of the ego awareness, As the ego itself is nothing but a soap box on which various "spirits" or complexes use to attempt to influence their unbalanced needs into the behavior. The balance of these inner voices, cancels out against each other, the conscious ego becomes quiet. The TRUE WILL then manifests, rather that the various unbalanced desires seeking gratification and control of the flesh to those ends, ie obsessions, addictions, fidgeting, etc.
Thus, by seeking K&C the lesser practical issues will clear up on their own, as if by magi```
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This is very good advise everybody and there grandmother want to go bashing spirits around for all there mundane Poo .. I think even Duquette mentions you should only turn to the spirits when you have exhausted all other options. But there are other ways to practice practical magic eg: Planetary Talismans , Sigil Magic , etc etc ..