what are and how are your experiences with meditation and hmmm mantra yoga for example...you should be able to control thought flow and stop it at will, after some not so serious training in that..or what ever method you use to obtain thought control.
yesterday i read about another method for charging sigils, so its second hand experience, haven't tried it out yet(not sure if i will)...visualizing sigil and using your ,statement of will' (sentence you made sigil of) as mantra, until it completely loses its meaning...guy who wrote this said it works for him (IMG:
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