The moon, a glowing yellowy white, loomed large, surrounded by an ethereal glow. Millions of stars were sprinkled behind it, a few large ones but mostly a multitude of little white pin pricks. Every now and then, a twinkle caught her eye. Moonlight is the reflection of the sun off the moon’s surface — a clear sky and a full moon provide brilliant moonlight. The atmosphere during a moonlit night is surcharged with calmness and quiet. It makes us forget the humdrum, noise and clamour of cities. Moreover, the cool air, the soothing beams, kissing each and every object of nature, present a charming sight. One feels an inexplicable sense of thrill and joy. The slanting rays of the setting sun gave a warm orange tinge to the sky. The sky was ablaze with the fire of the setting sun. The night sky was aglow with bright city lights. The pale crescent moon shone like a silvery claw in the night sky. The Moon is Earth’s sole natural satellite and nearest large celestial body. It is a spherical rocky body, probably with a small metallic core, revolving around Earth in a slightly eccentric orbit at a mean distance of about 384,000 km (238,600 miles). The two related concepts of wavelength and frequency are one way of describing light. While wavelength and frequency explain the different colors we see, the brightness or dimness of light is described by intensity. To increase light intensity, one must increase the strength of the light source, or emitter. The moon gently energizes, in contrast with the sun’s sharp brightness. Moonlight exposure is thought to also relieve anxiety and stress and improve relaxation by prompting the natural release of melatonin.