Hey. Magik is much about intent and how you can direct energy in such way that you will achieve whatever goal that you had when casted a specific spell.
Items and some other things are only there to help. It is quite simple,if you feel like something will help you,then it is most likely to do so.
You need a very strong will for magik to work for you,as energy takes time and devotion before being able to be directed. If you have a trained will,most of those items are optional.
As for example some witches make wands to aid them in directing energy,while some use their hands or eyes to direct it.
Once you learnt to direct it,you may still use these objects but you don't really necessit them anymore.
Things work different for different individuals. Stick to what you are comfortable with.
I hope this answers you :)