Before you can access your Dragon, you need to construct the Dragon Stone - the Building where every action affecting your Dragon is carried out. After this, you can begin to interact with your Dragon.
In the Dragon Stone window you will find three tabs: Dragon, Battle, and Dragon Arts.
In the Dragon tab, you can select the Dragon Art Bonuses you wish to activate. You will receive the benefits of the selected Dragon Arts for as long as the selected Dragon Bonuses are active. Here, you can also change the name of your Dragon.
In the Battle tab, you can slay Monsters with your Dragon and receive Dragon Points. Each successful attack and victory over the Monster will earn you Dragon Points.
The Dragon Arts tab contains the Dragon Arts tree. Discover and upgrade Dragon Arts to receive a wide variety of bonuses.