A desk lamp indicates an intuitive / psychic ability. However, desks are also used for writing, so look for other symbols that indicate a writing ability, such as a fountain pen.
A beautiful combination of symbols is where a dreamer discovers that a desk lamp is part of the arm from the elbow down. The most common desk lamps are very like an arm, with a joint in the middle where your elbow would be and a joint to control the direction of the lamp where your wrist would be. This means that you have a creative writing ability that works in combination with your psychic ability. Use both together to compliment each other.
