Something is Complementary when it unifies, completes and makes whole.
A complement is a complete entity.
My energy vibration is complete when its frequency & wavelength are complementary and in harmony.
My emotional power is complete when my male & female wavelengths of energy are complementary and synergistic.
My thoughts are complementary when their positive & negative frequencies are neutralised and in balance.
In a relative dual reality world, every extreme experience has an equal and opposite complementary experience.
Every emotional state of being has a complementary state of being, unless it is attributable as divine and complete.
A complimentary thought is always complementary and holistic.
A complementary emotion is always complimentary and favourable.