Quickleaf
Legend
What are the theories of magic in your campaign?
For example, IMC (which has an Egyptian theme) most magic is "associative", meaning the wizard associates him or herself with a powerful figure, often a god, legendary magical creature, or divine hero. An example of the verbal component for a wizard casting a curative spell would be: "I am Isis who chases evil from the wound. Like a sparrow I sweep low and pull out the worms of infection. This one shall not go to the underworld today. They are protected by my wings. Isis, great in magic, calls upon the wound to heal!”
For me this explains why someone observing a spell cannot just duplicate it - They haven't honed their minds to make the proper associations even if they get all the components right.
For example, IMC (which has an Egyptian theme) most magic is "associative", meaning the wizard associates him or herself with a powerful figure, often a god, legendary magical creature, or divine hero. An example of the verbal component for a wizard casting a curative spell would be: "I am Isis who chases evil from the wound. Like a sparrow I sweep low and pull out the worms of infection. This one shall not go to the underworld today. They are protected by my wings. Isis, great in magic, calls upon the wound to heal!”
For me this explains why someone observing a spell cannot just duplicate it - They haven't honed their minds to make the proper associations even if they get all the components right.