The Weak Force is the force generated by the vibration of Strings. It is the default creative force and exists at the moment of creation (i.e. the moment of the Big Bang. All other things beings equal, the weak force repels individual strings thus preventing the formation of higher order particles. The weak force is overcome when strings vibrations resonate and attract. The attraction of strings may lead either to diminishment of energies, annihilation of the individual strings, or resonation, integration of vibrations, and the creation of higher order physical structures (i.e. the Fundamental Particles.
Book of Light Volume Three