The Red God -- Tubal Cain, the Witch Father and Lord of the Forge -- is consistent. We see different aspects of Him at Beltaine and Samhain, but He is always the Red God. His is the red thread that offers us the foundational fiber for weaving magic and connecting with the Mighty Dead. He is the fiery red of sunrise and sunset, and His is the light that kindles the forge deep within the earth. (Tubal Cain has deep associations with Lucifer, as the light-bringer and father of smiths. More on this soon, I promise.)
Through the light half of the year, we mark the influence of the White Goddess whom we call upon as Goda. Hulda is an aspect of the White Goddess, and you will see us later refer to Her as a Queen (for She is the keeper of the Castle of Revelry).
The same is true for the Black Goddess (Kolyo), Cerridwen (the Queen of the Castle Perilous) and the dark half of the year.
|Note the demarcations for the light and dark halves of the year.|
However, as much as the Black and White Goddesses (and Cerridwen and Hulda, for that matter) counterpoint each other on the Year Wheel and within the compass that we lay, we must acknowledge and understand that they work along a continuum. They are not truly separate from each other. One requires the other for full manifestation, and the dynamic balance maintained between the two (within the Year Wheel, the symbolism of the Trad, and the inherent energies They represent) is critical to the practice of the Craft as we know it.
Just as the white knife cuts in the physical realm, and the black in the astral; so, too, do the Goddesses relate respectively to the physical and astral. The two are, in fact, reflections of each other.
There are more and subtler messages in the interplay between the White and Black Goddesses, but this is enough to set you in the right direction.