Being fully conscious is being truly alive. When you are fully conscious you are aware of what is happening right now at this very moment. Not in your mind, but in real life.
You truly see the trees as you’re walking by, you truly hear the birds chirping in the trees, you truly see the sun burning brightly and fully alive in the sky, you truly listen to your kids when they tell you something that is important to them, you truly taste the flavors and texture of your food, and you truly feel your breath moving in and out of your body.
Being fully conscious means you are not living inside of your mind. You are not thinking about tomorrow, or a week from now, or even just 5 minutes from now, lingering in your own predictions and assumptions.
You are not thinking about yesterday, a week ago, or even 5 minutes ago, recollecting, regretting and feeling miserable about past mistakes or past failures. It would be a waste of this very precious present moment.