"Cosmic consciousness is the idea that the universe exists as an interconnected network of consciousness, with each conscious being linked to every other." Reference: Wikipedia

In the 19th century, Canadian psychiatrist Richard M. Bucke developed a theory which claimed that... "Cosmic Consciousness is a third form which is as far above Self Consciousness as is that above Simple Consciousness. With this [third] form, of course, both simple and self consciousness persist (as simple consciousness persists when self consciousness is acquired), but added to them is the new faculty so often named and to be named in this volume. The prime characteristic of cosmic consciousnessis, as its name implies, a consciousness of the cosmos, that is, of the life and order of the universe... Along with the consciousness of the cosmos there occurs an intellectual enlightenment or illumination which alone would place the individual on a new plane of existence - would make him almost a member of a new species. To this is added a state of moral exaltation, an indescribable feeling of elevation, elation, and joyousness, and a quickening of the moral sense, whichis fully as striking and more important both to the individual and to the race than is the enhanced intellectual power. With these come, what may be called a sense of immortality, a consciousness of eternal life, not a conviction that he shall have this, but the consciousness that he has it already."

Reference: Richard M. Bucke Cosmic Consciousness, Cosimo Inc., 2007 ISBN 978-1596054790.

Collective Consciousness is a term coined by the French sociologist Émile Durkheim (1858–1917) to refer to the shared beliefs and moral attitudes which operate as a unifying force within society. Reference Wikipedia,

Collective Consciousness refers to the condition of the subject within the whole of society, and how any given individual comes to view herself as a part of any given group. Reference: The University of Chicago: Theories of Media: Keywords Glossary: collective consciousness