You essentially don't mean anything except some connotation of woo you find agreeable.
Whereas when I say 'awake', you know exactly what I mean, since it's part of your experience. It's true that we don't have a perfect description of how the brain moves from unconscious to conscious when you wake up, but medical science's enquiries into the question are making progress. For example I found this snippet with a quick net search ─
One of the major systems in the brain that wakes you up is called the reticular activating system, or RAS. The RAS is a part of your brain located just above your spinal column. It’s about two inches long and the width of a pencil. The RAS acts like a
gatekeeper or filter for your brain, making sure it doesn’t have to deal with more information than it can handle.The RAS can sense important information and create neurochemicals that wake up other parts of the brain. It also keeps you awake throughout the day.If you have to go to the bathroom in the middle of the night, the RAS senses that signal from your body and
flips a switch to wake your brain up – just like a light switch. Signals coming from outside of your body, like the sound of an alarm clock or a parent waking you up, can also flip on your RAS.Once the RAS switch turns on, it can take some time for your whole brain and body to wake up. This is because it takes a few minutes to clear all the “sleepy” neurochemicals from your brain, which is why you may feel groggy when an alarm clock wakes you up.
There have also been articles on how anesthesia works, but I didn't find them with that search. However, nothing stops you from doing your own homework except of course yourself.