One of the simplest yet profound aspects of Vastu is its emphasis on sunlight. The Sun rises in the east, bathing the world in energy and vitality. Morning sunlight is rich in Vitamin D and has been linked to improving mood, boosting productivity, and regulating sleep cycles, making it an invaluable resource for health and well-being. Vastu suggests positioning living spaces like bedrooms and study areas to the east to harness this morning light, which promotes productivity and positivity.
Similarly, south-facing walls receive the most sunlight throughout the day, making them ideal for solar panels or thermal insulation. Meanwhile, the west and north sides can serve as shields against the afternoon sun or colder winds, respectively.