The two basic psychic powers are the power of passive perception and the power of active imagination.
All humans possess and use these powers regularly. However, a psychic makes these powers into psychic powers by giving them more depth and and fusing them more closely together.
Perception without imagination leaves you with information you don't know what to do with, and is often seen as more of a pain or irritation rather than a blessing.
Imagination without perception leaves you curled up in your inner world, and bumps you down to the bottom of the food chain.
Integrating these two psychic powers requires a lot of personal development, but the result is well worth it. This dynamo of psychic powers presents you an endless well to draw specific psychic abilities from and use them with good judgment and purpose.
A master psychic is a human person who is of this world, but is not bound by it.