Astra and Veda are opposites on the spectrum of light.
Astra: the Light, the stars, good, yang, brightness, white, birth, electromagnetism
-Opposes-
Veda: the Darkness, the void, evil, yin, shadow, black, death, gravity
The soul or spirit of every mortal being is a composition of Astra and Veda. After the death of the body, the soul is released to the Astral plane to make the final journey to endless darkness or eternal light based on the character of their soul.