Vividness is generally a measure of clarity and level of immersion experienced within a dream. Lucid dreams are not necessarily more vivid than non-lucid dreams. A dream is generally more vivid if has some of the following elements: * Clear, unobscured vision. * A tangible sensory element, such as the feel of objects and a general impression of solidity and corporeality of the surroundings. * A firmly rooted sense of self and form. * A consistent setting. A dream can be made more vivid by uttering a verbal command, for example "Increase Vividness!", or focusing on this intent.