Sun is the most vital source of energy and light. It is the soul of the universe. Formation of day and night, charge in seasons is brought about by the movement of the Sun in relation to the movement of the earth. The fire element is related to our sense of sound, touch and sight. It is difficult to imagine life on earth without the sun. The sun’s rays can be split into 7 plus 2 colours. Beginning from the very beneficial ultra-violet rays in the eastern side corresponding to north-east, the sun’s rays further split into violet, indigo, blue, green, yellow, orange and red (VIBGYOR) and intra-red in south-east. Violet and cold colours of the spectrum have a beneficial and soothing effect on the body and hence it is recommended to keep open space in the north-east.

When these rays combine with water, they get additional benefits. It is, therefore, recommended to have a water source in north-east direction. To block north-east by building a toilet there is depriving yourself of most beneficial rays of the sun and has adverse results. The ultra-violet rays normalise the metabolism of the body.

The supreme wisdom of our sages is reflected in the ancient ritual of Surty Namaskaar wherein the beneficial rays of the sun become more potent when seen through fresh water offered to the sun god.