When you think you are awake, you’re not. You go for a walk along a path in the woods, and you are fully awake, at least in your mind. But from a different perspective, are you awake? No you are not. You are sleeping. Why? Because your mind is full of thoughts, ideas, tasks to be done. All of these mental activities are moving at the speed of light. Your eyes are open. You look awake to the world. But you really are not.
You’re not really present. You’re far away. You’re unaware of your present world.
A frog can hop at your foot, and you won’t even see it.