Imagine you have a favorite book or story that you love to read. Now imagine that you have to write the whole story out by hand, word for word, without making any mistakes. That's kind of like what sutra copying is.
Sutras are sacred texts that people in some Eastern religions, like Buddhism, study and follow. Copying sutras is seen as a way to show respect for these important texts and to gain spiritual benefits like good luck and protection.
When people do sutra copying, they use special brushes and ink to write out the text on sheets of paper or cloth. They have to be very careful and pay close attention to each word and character to make sure they are copying everything correctly.
Sutra copying can take a long time, sometimes weeks or even months, depending on how long the text is. It's not easy, but people who do it believe that it's worth the effort to honor these sacred texts and deepen their own spiritual practice.