Also, this is just a friendly reminder, you really don't need anything for witchcraft. Everything you need you already have. Your focus and intent are the most important things you possess.
And untrained, unpracticed, unstrengthened, they're useless.
People speak of will, intent, and focus, as if they were no different than 'wishing really hard'. The exercises the op is asking about are part of the process of learning to APPLY one's will and intent. It is not a casual thing, or everybody who yearns for a mate would find one, everybody who desparately needs money would get it.
Witchcraft is a craft, a skill, a learned trade as much as an art. It is not an easy out. A daydream is not a visualization, focus is not the same as 'thinking about something' for half an hour or so. Practice in meditation, in breath control, in sensing and raising energy - these are necessary steps in acquiring the power to actually DO anything with magic.
Tools like knives and cups and special shapes may not be necessary (although they are certainly useful). Tools like concentration, planning, focus are necessary, and don't come 'free'. To have effective will and intent requires practice, refining of skills, awareness of technique.
'All you need is your own will' completely skips the matter of what 'will' is, how to use it, and how strong it has to be to work. It's the difference between singing in the shower or around the fire and filling a concert hall. It takes
work.
Absent