In earlier times, written spells were the province of a few wise men and women who were more literate than the majority of the populace. In many cultures, the written word was revered as a gift of the gods, especially among the Egyptians and Greeks. For this reason, written spells came to be considered more potent than verbal ones.
One of the oldest and best-known written spells is the word Abracadabra, customarily used to banish sickness. In ancient Chaldean texts, Abracadabra translates as “to perish like the word.” The letters in Abracadabra were written in the form of a descending triangle on parchment, which was then laid on the inflicted body part. Then the paper was removed and stuck in the cleft of a tree. As time and the elements destroyed the paper, the magick would begin to work. This whole process is an example of magickal symbolism, sympathy, and similars — the word disappears into nothingness; the paper disappears into nothingness; and, therefore, the disease or illness takes the hint and follows suit.
When you write with a pen or pencil, you activate the acupressure points in the thumb and fingertips. These points induce relaxation and strengthen the connection to the subconscious mind. Thus, writing contributes to the power of a spell because it helps to center your mind and engages your imagination.
Written words, affirmations, incantations, and sigils are often included in contemporary spells. A written intention might be slipped into a talisman or amulet. Spells are sometimes written on paper, then burned to release the intention into the universe. Witches might write a spell a set number of times — the number corresponds to the spell's objective (e.g., six times for joint endeavors, eight times to attract financial security). The color of the ink, the shape of the paper, even the addition of aromatics to the ink or paper may contribute to the overall effect of the spell.
Why go through all this fuss? Because witches believe that the more dimensions magick has (with sensual dimensions being especially significant), the better the results will be.