Many artists will openly state that their inspiration comes from an external place, that they have been chosen to channel their artwork through their mind and conceive it with their media. Some even claim divine inspiration, that their work is the product of God's divine creativity. Although these people may in fact believe this, they do not realize that they are in fact heavily influenced by their favorite artists, or in fact, by their surroundings.
An informative quote;
Bad artists copy. Good artists steal.
The truth behind creativity is actually a summation of all that you find appealing, transformed by your evolved perception of the world. It is precisely your experiences throughout life that are at the basis of what you create with your inherent creativity. Not all people enjoy sunset oil paintings, and not all people care for black and white photography. The amount of art out there is incredibly large, and the ever expanding volume of different medias used and the inclusion of digital art has spread creativity far and wide. Often, one will see some art and say "I could never do that." or "How did they even come up with that?" under the assumption that these people are the sole reasons for their art to exist.
Pablo Picasso (for he is often referred to as one of the most original) himself knew his influences; George Braque, Paul Cezanne, and (importantly) Pablo's father also pursued art, setting the stage for an immersive creative familial influence.
Dali, one of the most notable surreal artists, gained influence from Americana art, fused with influences from Picasso and Joan Miro and others. Their production of almost other-worldly pieces is quite the opposite; they are products of their environment, their access to influences and inspiration, and a sheer dedication to advance their skills as artists.
No doubt if you've found my site you are a worth internet-ninja, with a curiosity and great intelligence. We are all intelligent, beyond smart, yet we are often subjected (subconsciously or not) to the idea of the exact opposite. Do not let your inability to understand anything limit your ability to understand something else. All things are capable for you to learn, but ambition, motivation, and inspiration are key.