Wonderful means "wonderful use". The fundamental idea of ??Buddhism is that all living beings have Buddha nature, and Buddha nature is the "eternal body". This eternal body can create the world, and can see, hear, smell, taste, touch, and think. These "abilities" are magical uses. The use of the word "miao" in the name of the Dharma means that the disciples can use the six sense organs wonderfully to return to their normal state.