Creativity is very much related to one's instinct to express the inner world of his/her. It is the result of letting the right brain function more than we-as human beings- usually do. When the inside noise that left brain creates stops, there is  a place left for creation by the right brain which eventually leads to salvation and creation. Creativity is a very important source of one's freedom. Because by creating one can reach to her/his higher self and infinity. In that way, one can understand the richness of his/her potential. To begin with a creation one begins by 'imagining'. Imagination is the first step of  creation. When imagination meets with the physical world, it becomes a creation. Now it reflects to our world, which is transmitted from the very essence of human beings' soul.
Another important component which ties the creation and imagination is the 'inspiration'. Inspiration helps to create one's desire.
Creativity can be made by using words and/or visuality most of the time. But also it is very much enriched by the knowledge. Because when the knowledge expands, the vision expands too and this in the end leads to creativity. So when one see, read or learn more, the potential of his/her creativity increases, too.