As magical people one of the foundational principles we live is the interconnectedness of all things. Yes, of course it is possible for me to be disconnected from another person or thing, but that has to be a conscious disconnection, and much of the work of magic is deciding which connections we make. As soon as anyone starts the practice of magic, any nearby beings of any description sit up and pay attention, and that is why so many magical traditions so strongly emphasise cleansing and stilling rituals.
Nor are we alone on our own plane. Witches instinctually know each other and are drawn to each other. Even not in a formal coven the witch will find herself with other pagical practitioners around her, and this can sometimes cause some weirdness in events, since not all planes are functioning at the same time.
In my last post I said that I was going to get some supplies to cast a spell and get rid of my supervisor. I have decided not to, because two of my magical companions have already commented that she is as good as gone. For one thing I wouldn't want to slap the universe's gift of liberation, in the face.
For another thing, I can instinctually feel when magic is working and the way I always know is that I get a feeling of ecstasy. I mean this word literally in the sense of standing outside of normal reality and I JUST KNOW. The initial irritation has also left me completely, so I know that the problem has been dealt with and it has left me to go home to roost. For another the universe always ushers new paths, resources, and people into my way when this happens. I have several unconventional magical companions, who are mostly dead, but a couple are more like egregores. Yes, he's dead, but older readers will remember in the lovely Grant Morrison's Invisibles when King Mob invoked the spirit of John Lennon as of a god. I'm very fond of the egregore of Patsy Stone from Absolutely Fabulous, personally, but I have remade the acquaintance of someone who has appeared on the edges of my world now and then for years. 'You will dance, sing, feast, make music and love, all in my praise,' says the Goddess in Aradia, and I'm delighted that I can provide an ecstatic song sung by one of my inspirations/magicl companions, egregores, below.