In spiritual matters, the Fool means idea, thought, spirituality, that which endeavours to transcend earth
The Mother Letter is a term found in the Sepher Yetsirah. It refers to three letters of the Hebrew alphabet, Aleph, Mem and Shin, which are Air, Water and Fire respectively.
In the Tarot the Mother letter applies to the Major Arcana, The Fool, The Hanged Man, and Judgement or Aeon
Enforced sacrifice, punishment, loss, fatal or voluntary, suffering, defeat, failure, death.
Final decision in respect of the past, new current in respect of the future; always represents the taking of a definite step.
Idea, thought, spirituality, that which endeavours to rise above the material.
Folly, mania, extravagance, intoxication, delirium, frenzy, bewrayment.
Enforced sacrifice. Punishment. Loss. Fatal and not voluntary. Suffering generally.
Final decision. Judgement. Sentence. Determination of a matter without appeal on its plane.
Wisdom, circumspection, discernment, trials, sacrifice, intuition, divination, prophecy.
Change of position, renewal, outcome. Another account specifies total loss through lawsuit.