Know, at all times, why you are doing what you are doing.
Know your own motives well.
Exercise caution in your undertakings, as each action, each thought, is to be clearly of your own choosing.
Each thought and every action will engender, progressively, a response relative to it for which you are solely responsible.
I say progressively because you will become aware, in this manner, of a deepening of self as the illusions drop from you like a
snake shedding an outmoded skin.
There is no reason to set up a ritual circle or cleanse with the intent of purification unless there is an intent.
That intent can be as simple as seeking contemplation as a passive form of ritual, or as complex as the experiment of a Qabbalistic Mass in the tradition of the Golden Dawn.
It matters not if your intent is unclear.
The lack of intent will reflect on the evolving whole, as each witch will have an effect.