Ed Russo 
Yamantaka: Lighting the Torch In the Three Blind Worlds of Buddhism [EPUB ebook] 

There are ten conditions of life that we experience in our daily lives; three of the lower realms are hidden in the dark recesses of our mind causing despair, self-hatred and reactive behavior beyond normal conscious control. Rather than being at the mercy of our surroundings, we can shed light in these blind areas and receive Liberation through the intent of the Wrathful One, Yamantaka, the lord of death. This is symbolic of gaining insight in the Intermediate State during the subtlest level of our mind.