A man’s soul is like a lagoon connected with the sea by a submerged channel; although to all outward seeming it is land-locked, nevertheless its water level rises and falls with the tides of the sea because of the hidden connection. So it is with human consciousness, there is a subconscious connection between each individual soul and the World-soul deep hidden in the most primitive depths of subconsciousness, and in consequence we share in the rise and fall of the cosmic tides.
Dion Fortune, The Mystical Qabalah