The topic of Consciousness is astoundingly unique in that as a branch of Science there exists no clear definition of what Consciousness actually is. Tonini et al developed Integrated Information Theory and successfully synthesise the properties of consciousness to derive fascinating and ground-breaking insights, however stop short of deriving an actual working Definition. Beginning primarily from the Upanishads and Advaita Vedanta as the world's leading comprehensive and compact study on Consciousness, a first cut at a Definition of Consciousness is proposed and then refined with examples. Implications from the Definition: If "self" qualia are defined as the combined properties of thoughts, beliefs, memories, ideas, habis working paradigms etc. then the `protection' mechanism of the same is the self-referral loop, which bears a remarkable resemblance to an Error Checksum (ECC). Startling implications then arise covering "Artificial" Intelligence, Computer Science, Epigenetics, Control Theory in Engineering, Vector Processing and Distributed Computing.