ENERGY MEDITATION.....to feel more energetic?

[makar199114]

I think I have not been been doing this meditation correctly.I feel very sleepy throughout the day.Or that maybe due to some other reason.Can I use this meditation to become more energetic and promote wakefulness? as exams are on

While breathing in I have to draw in energy.Draw in to what?
And while exhaling,how do I visualize it expanding my aura? DO I visualize energy going to my body surface?