‘Medium’ means acting as a channel for contacting and communicating with the spirits which may include the spirits of the dead and also other divine spirits, guiding spirits, angels, archangels and even cosmic powers. Clairvoyance means seeing things clearly beyond the normal senses. A clairvoyant sees the energy, images and visions not only within himself with his mind’s eye but also outside his body—beyond the veils of matter, space, and time.
In the late 1920s and early 1930s there were around one quarter of a million practising Spiritualists and some two thousand Spiritualist societies in the UK in addition to flourishing microcultures of platform mediumship and 'home circles'. Spiritualism continues to be practised, primarily through various denominational Spiritualist churches in the United States, Canada, Australia and the United Kingdom. In the United Kingdom, over 340 Spiritualist churches and centres open their doors to the public and free demonstrations of mediumship are regularly performed.