The Force

The Force: The Force is what gives a Jedi his power. Do. Or do not, there is no try.
It's an energy field created by all living things. It surrounds us and penetrates us. It binds the galaxy together. For over a thousand generations the Jedi Knights were the guardians of peace and justice in the Old Republic. Before the dark times, before the Empire.

...Jedi Master Obi-Wan Kenobi

One will be enlightened, one will face their destiny... one will see, one will be blinded...

...Jedi Mitth'raw'nurida

Concentrate. Feel the Force flow. Not outside or inside, but part of all it is. Through the Force, things you will see. Reaches across time and space it does. Other places. The future... the past. Old friends long gone. Always in motion is the future. Size matters not. Look at me. Judge me by my size, do you? And well you should not. For my ally is the Force. And a powerful ally it is. Life it creates, makes it grow. Its energy surrounds us and binds us. Luminous beings are we... not this crude matter. You must feel the Force around you. Here, between you... me... the tree... the rock... everywhere! In balance is the Force. The Dark and the Light. Without one, there is no other. The Dark Side, tempting it is. Quick, easy at first, but a trap is the Dark Side. Corrupting, evil. Once you start down the Dark path, forever will it dominate your destiny. For the Light Side, patience you need. Control. Peace and harmony it is.

...Jedi Master Yoda