Let us understand this through the wisdom of Sanatan Dharma — how we receive energy and fire from the Sun, which is essential for human life.
In Sanatan Dharma, the worship of the Sun (Surya) has been practiced since ancient times. Among the nine planets (Navagrahas), Surya is considered the most powerful and supreme deity; hence, we worship him. But there is also a deep scientific reason behind this tradition.
Just as plants and trees need sunlight to bloom and survive, we humans also depend on sunlight for our life and vitality. Without the Sun, our existence would come to an end. That is why in the ancient Hindu culture, there has been a tradition of offering water (Jal) to the Sun every morning — known as Surya Arghya.
Traditionally, the water offered to the Sun is poured from a copper or brass vessel. You might have noticed that when sunlight passes through a magnifying glass, it converges at a single point and can even ignite fire. This same scientific concept was known to our ancient sages (Rishis and Munis).
However, most people then — and even now — do not fully understand the reason and significance behind this ritual. When we pour water to the Sun slowly and steadily from the vessel, the sunlight passes through the falling stream of water. The rays of the Sun and the water come into contact, and the refracted light that passes through it falls directly on our forehead (kapal) for a few moments.
That light acts as a spiritual and energetic fire (agni) for our body — awakening inner energy, purifying the mind, and connecting us with the cosmic source of life: the Sun.
