Manipur, in north-east India, is not at all a matriarchy. Though mothers there are in forefront of most of the social activism, the society has always been a patriarchal. Their women power is visible because of historical reason.
The solar radiation that reaches Earth acts as its main source of energy in several ways. It warms the Earth's surface, regulating weather systems and providing a habitable environment for its lifeforms to thrive in. The sun's interactions with Earth generate raindrops, which in turn provide hydropower.
Sun is the primary source of natural light, and lightbulbs or lamps are the artificial sources. Light is a form of electromagnetic energy that, in the case of natural light, comes from the sun as the source and, in case of artificial light, illuminates via energy from another source. No matter what the source, light has an impact on life on earth as a whole. Sun is the most powerful source of light.