In each Seal, the central set is composed of Air (energised by the Sun); whilst the upper set of the female seasons consist of Fire (fuelled by Jupiter) - and the male seasons are headed by Water (driven by Saturn).
As explained in my book, each Seal's stability derives from its bottom element, which is slowly strengthened as the season develops through the establishing Minor Cards
For the benefit of those readers whom have not quite grasped the Seals' significance, I will now use Winter (for obvious reasons) as an example to illustrate how they are read...
Winter's freeze, contained in the Ace of Pentacles, establishes itself through the actions of the narcissistic Fool and the divisive Devil, who seek to impose their will; but they are opposed by Venus and Mercury that, although weakened by the powers of Darkness, are still able to draw forth Knaves of Wands and Cups to bring about an eventual thaw. However, Darkness is assisted by Pentacle's confusion - made possible by freezing the rapid response of Air - and it is that central component that provides Winter with the means to ruthlessly impose itself through the Hanged Man and the Tower - scorning the World; sickening that which was valued; and draining the Light's Strength until it is finally discarded.
The conditions are then ripe for the Moon and Mars to draw what remains of Light and warmth from the Emperor and the High Priestess until they are eventually frozen; and the Queen of Pentacles and King of Swords are fully established as rulers of Winter's icy, Dark season.
The Emperor is finally humiliated by the Lovers; the High Priestess is corrupted by Justice - and both are finally abandoned - leaving only the surviving Knights of Wands, and Pages of Cups, to preserve the Light necessary to return Woman's Summer - divided and lowered.
Each Seal, reading top to bottom, is divided into the three sets of Elements illustrating: resistance, acquiescence, and conquest - and what they all teach us is that each season is inevitable, should we choose to give it birth.
'Our ancestors would not have welcomed all Venusian gifts so readily.'