The term 'Hybridization' simply means blending different systems with different properties to form homogeneous systems with equivalent properties. One way to think of this is in terms of blending different fruits in mixing blender to form a homogeneous smoothie. In terms of changing an elements valence shell structure, think of it as taking the s and p orbitals of the ground state valence shell and placing them into a blender and then separating the mix into several equal portions. All of the mixture portions are equivalent in appearance and properties. The hybrids are now ready to form covalent bonds or appropriate numbers of diamagnetic non-bonded pairs of electrons dictated by the number and types of electron pairs associated with the final ground state molecular configuration.