The triangle is God (the Trinity) or the world of ideas, or the noumenal world. The point is man's soul. The square is the visible, physical or phenomenal world. Potentially, the point is equal to the square, which means that all the visible world is contained in man's consciousness, is created in man's soul. And the soul itself is a point having no dimension in the world of the spirit, symbolized by the triangle. It is clear that such an idea could not have originated with ignorant people and clear also that the Tarot is something more than a pack of playing or fortune-telling cards.
H. P. Blavatsky mentions the Tarot in her works, and we have some reason for believing that she studied the Tarot. It is known that she loved to "play patience". We do not know what she read in the cards as she played this game, but the author was told that Madame Blavatsky searched persistently and for a long time for a mss.