This document discusses the evolution of animal sacrifice in religious traditions from a perspective of gunas (qualities). It argues that animal sacrifice was originally done out of necessity for survival but is now an unnecessary act of cruelty (tamas) rather than bravery (rajo). As humans evolve spiritually towards sattva, there is less need to assert dominance through killing when vegetarian options are available. True spiritual enlightenment (sattva) involves non-violence and not taking lives unnecessarily through practices like animal sacrifice.