String theory is based on a philosophy that matter is composed of vibrating "strings" of energy. Here's a great program about it.

http://www.pbs.org/wgbh/nova/elegant/
The entire 3hour program is available streaming.
(Also explains einsteins theories and quantum mechanics.)

What do you think about this? How can we relate this to the reality we percieve?

The Epicureans!

What they believed what that the atoms fall endlessly in strings through the void, and that their collisions cause the phenomena.