Ratha Saptmi is a very auspicious day for Hindus which is observed every year.
"Ratha" means chariot and "Saptami" means "the seventh day"
Ratha Saptami is a Hindu festival. The day falls on the seventh day in the bright half (Shukla Paksha) of the Hindu month Maagha. Therefore, this day is also known as Magha Saptami.
It represents the seventh day following the Sun's northerly movement (Uttarayana) of vernal equinox starting from Capricorn (Makara).
Importance of Surya (also known as Aditya, Bhanu and Ravi) in Hinduism
Sun is considered as the most significant element in the Hindu mythology and astrology. Surya represents will power, fame, courage, authority and bravery. He is the lord of three nakshatras : Krittika, Uttara Phalguni and Uttara Ashadha. He is at the centre of all nine planets and all the planets revolve around him.
Story behind Ratha Saptami
There was a king who had a son. King used to be very tensed and worried because his son used to be ill most of the time. Then, the king decided to get advice from someone so that the health of son could be cured. A very learned man told the king that the reason behind his son's illness is the Karma i.e. his past deeds. Learned man suggested him to perform prayers to Lord Sun and to perform rituals on the day of Ratha Saptami. This will help him in curing his son's health.
His son followed the advice and offered praying to Lord Sun. He got free from all the sins and negativities
What do to on Ratha Saptami
One should to Lord Surya after taking bath during Arunodaya. Offer prayers to Lord Sun by reciting or chanting Aditya Hridayam, Surya Ashtakam, Surya Shathakam, Aruna Parayanam, Vedam. One should offer flowers and water to Lord Sun.
By observing fast on this day when can free him from sins and can eliminate negativities from life.
Worshipping Lord Sun on Sunday is recommended as a good source of attaining wealth, good health and eliminating obstacles.