Ali is aware of his feelings, emotions, and thoughts. He is also aware of his surroundings, the warmth of the sun, and the sound of nearby traffic. Ali is in a state of consciousness. That means that he is conscious of all these events around him.
Conscience is your moral sense of what is right and what is wrong. Unconsciousness means that you have passed out or something. REM sleep is a part of your sleep, so you cannot be aware of your surroundings then.
