A dream dictionary is a document you create with the symbols from your dream. For example if you dream of a house you define for yourself what a house represent for you. The definition to a house is a personal one, not an objective definition. Although sometime it might help with a more objective definition, the real gem of this practice is to define the word subjectively. By themselves, the symbols might not give you a lot of information. It's the relationship between these archetype which uncover a deeper meaning. As you create your own dream dictionary certain symbols will come back. At that point you can re-define these words or use a previous definition. The process of defining words and concept for yourself is a very important step in re-defining your reality. Take the simple example of defining the word Love. It's a word that we often use, but that we rarely define for ourselves. Is it an emotion? Is it a decision? Do you catch it? What does it feel? What are the different layers of love? As you can see, defining these concept is also foundational to emotional intelligence. How can you manage your emotions if you don't know your own definition of the word that you are using. Working with a dream dictionary is therefore a roundabout way to defining your own reality. A lot of the dream practices works this way.. For example, practicing lucidity in your dream will bring about more lucidity in your day. But it's more fun to become aware in your dream than in your daily life. Realizing that the dream is all made up of our perception and definition, leads us to realize that our waking life is also just one interpretation of reality. We all view the world differently, and realizing our own definition of this world is a first step into understanding who we are.