Free Energy by Meditation

Sometimes when I'm feeling tired, this exercise really helps me out. It's especially good when just waking up.

Find a comfy chair, or perhaps your bed. Relax. Look around you.
Now close your eyes and steady your breathing. Make sure all your muscles are relaxed. Imagine the room your are in - visualize that which is around you.
Now focus on you body; your skin, your fingertips, where your body comes in contact with something else. Keep focusing on that.
Now begin to draw energy from the world around you. Feel your body and mind draw strength straight from the air around you. Feel it gather on your skin, absorb through your pores, and energize your body.
When you have had your fill, open your eyes and enjoy your rejuvenated spirit.

Granted, this doesn't always work. But if you can manage to suspend your disbelief, you should give it a try.