I tell my students now that Pagan is to Wicca as Christian is to Catholic. Witches do magic and spells. Simply they are opening up to natural forces and energies in the universe. They are tapping their own psychic abilities. They are attuning to the energy around them.
Spells are like focused prayers.
You are asking for a specific event. Rituals are techniques to raise these energies and intents, to amplify them so they occur. We all create our own reality by the thoughts we put out. Witches are simply more conscious of that process and put out strong thoughts. Witches also ask these spells harm none and be for the good of all involved.