Simple Examples:
* The patient regained consciousness after the surgery.
* She was lost in thought, her consciousness drifting away from the present moment.
* The philosopher pondered the nature of consciousness.
More Complex Examples:
* The study explored the relationship between consciousness and the brain's electrical activity.
* The advent of artificial intelligence has led to debates about the possibility of machine consciousness.
* He was so focused on the task at hand that he lost all awareness of his surroundings, completely absorbed in the flow of his consciousness.
Remember:
* "Consciousness" is a noun, referring to the state of being aware of and responsive to one's surroundings.
* "Conscious" is an adjective, meaning "aware" or "intentional".
Choose the word that best fits the meaning you want to convey in your sentence.