We often spend thousands of bucks just to buy velvet sofas, artisan rugs and customised cabinetry to bring perfection to our living room, yet the most powerful design element in any home is entirely free: "Sunlight", often known as "Invisible Architect", having the capacity to change a cramped and sterile room into a sprawling sanctuary or cold hallway into a warm and cozy space. Getting to know and understanding the alchemy of light is not just about aesthetics; it is about understanding how your home’s "pulse" changes from sunrise to sunset.
The Hidden Psychology Of "Glow" : When your room is filled with natural light, our brains produce serotonin, the "feel good" hormone. Having a breakfast that is sun drenched not only reduces the cortisol(stress hormone), but also helps you in setting the rhythmic pace for the day.
Altering Architectural Volume: The bright and uniform sunlight erases off the shadows in corners, pushing walls outward and making small footprints feel expansive. On the other side, "dappled" light which is filtered through trees or blinds creates texture and depth. By controlling where the sunlight’s bright rays hit, you can actually make your ordinary room feel more cozy and feel as if you are staying on the lap of nature itself.
Shifting Colour Palette: The paint colour that you choose in the shop does not exist in reality; it changes automatically with the sun’s orientation. The "Golden Hour" during the late afternoon directly acts as a natural filter, which shines out your house's interiors into a warm amber that softens hard edges and warms up the modern, industrial materials.
Circadian Interior Design: A house that embraces the sun’s transitions supports our body's internal clock. A bright and a cool light in your home office room helps in boosting your productivity and focus, while the long, orange tinted shadows of evening time gives a signal towards our nervous system that it is time to decompress.

Harvesting Light In Your Room:
Firstly, you can place a few mirrors on the walls which are opposite to the windows in rooms of your house to help rays of the sunlight bounce back into darker corners, which effectively doubles the effect of light in your room.
Always use polished metals or glass or high gloss paintings, especially in ceilings to pull the sun's brightness deeper into the room’s center. This way your room feels to be more refreshing rather than feeling dull or demotivated.
You can even choose to paint the north facing rooms of your home in warmer tones like "terracotta" or "soft yellow" to balance the cool light and even use cool shades such as "sage" or "slate" in south facing rooms to keep the room heated with sunlight.

In Nutshell:
Your room’s environment is never static; it changes as time of the day changes. Sunlight is the lens using which we experience our surroundings. By knowing to operate along with the sun rather than blocking it from entering your home, you change your living space into a living, breathing retreat that evolves with the day.