The tarot can be understood better if the underlying numerology is understood. Cards of the same number in different suits and in the Major Arcana have similar meanings derived from the following qualities...
Corresponding - Major Arcana - The Emperor
Major characteristics: Structure, Foundation, The Physical Universe
Also: Stability, order, predictability, solidity, tenacity, entrenchment, work, reality, manifestation, practical attainment, stagnation, logic, reason, power and control, the material world.
Books You Might Enjoy:
Austin Osman Spare - The Logomachy Of Zos
Aristotle - On The Soul
Christopher Siren - Sumerian Mythology Faq
Thomas Muldoon - Numerology For The 21st Century