The word "Consciousness" is among the most used word in both spiritual and scientific literature. At the same time it is also among the most misunderstood term. Yet Consciousness is central to everything in life. An understanding of what Consciousness is, both intellectu­ally and spiritually, is important to understand life and creation, the spiritual journey and the evolution of life itself. Given its immense importance in Sri Aurobindo's yoga and the metaphysics of creation, this issue of ALL LIFE IS YOGA focus on this key word so that Light can be cast upon that which is actually the very source of Light!