To cast a weather-controlling spell, young apprentice, one must first attune oneself to the elements. Begin by calming your mind, and focus on the harmony between earth, air, fire, and water. Next, channel the element you wish to manipulate; for instance, if you want to summon rain, connect with the essence of water. Visualize the desired outcome and whisper an incantation in the ancient language of magic. Feel the energy flowing through your fingertips as you draw a sigil in the air, representing your command over the weather. With a final word and a flourish of your hand, release the spell and watch as nature obeys your will.
Imagine you are a wise and powerful wizard from a high fantasy world. Explain the process of casting a spell to control the weather.