Firewalking Pilgrims outside Mother Shrine,
Arunachaleswarar Temple
In the definitive scriptural work, The Skanda Purana, there are several stories of Surya, the Sun in association with Arunachala, the primary ones being:
Sun God at Arunachala
"On the advice of Brahma, Bhaskara (i.e. the Sun-God) who is a mass of refulgence but who was harassed by Asuras, devoutly worshipped the Lord of Arunachala.
After plunging into the sanctifying pure Tirtha created by Brahma, he circumbulated Arunachala, the Lord himself.
After gaining victory over all the Daityas and (the privilege of) circumambulating Meru, he gained supreme refulgence that destroys the brilliance of enemies."
[Page 34, Verses 32-34]
"Aditya whose shape was formed by Tvastr blazed with brilliance. The Lord of Planets attempted to cross Sonadri. The horses of his chariot lost their power and became tired. Due to the refulgence of Sonadri he became devoid of glory. Even with all the attempted motion of the possessor of cluster of rays (i.e. Sun), he became unable to go to the heaven. On the advice of Brahma he propitiated Arunachala. When the Lord was pleased, he obtained the path of the sky and splendid horses.
Ever since then the Sun never crosses the mountain named Sona but goes circumambulating him."
[Page 35, Verses 45-49a]
Sun God's Charioteer
"When he obstructed the flow of water at the time of the gift of the earth by Bali (to Vamana), Bhargava (i.e. Sukra) lost his eye on being prickled with the top of the Darbha grass held in his hand by Vishnu (i.e. Vamana). He went to Sonacala and performed a very difficult penance. With his soul purified, he regained his eye.
He (i.e. Aruna, Garuda's brother) was stationed on the mountain named Bhaskara. By serving the Lord of Arunachala, he became the charioteer of the Sun-God."
[Page 35, Verses 51b-53]
Circumbulation of Arunachala
"One who circumambulates on Sunday becomes liberated. Piercing through the solar disc, he shall go to Siva's city."
[Page 59, 57b-64a]
"One shall attain innumerable benefits by circumambulating Sonagiri on equinoctical days, days on which the Sun takes another transit, the transit from one Zodiac to another, on Vyatipata days and other Parvan days."
[Page 186, Verse 51]
Holy Rites for Special Attainments
"If anyone worships the Lord of Sonadri on a Sunday with red lotuses, he will surely acquire great imperial magnificence."
[Page 120, Verse 1]
"During the Solar and Lunar eclipses a devotee should piously bathe the Lord with Pancantra repeating the five-syllable Mantra of Sonanatha. During the two Ayanas (i.e. transits of the Sun) the deity should be bathed with Pancagavya. The rite of bathing with Gavya shall be performed along with the recitation of the six-syllabled Mantra.
During the two equinoxes the bathing rite of the Lord of Arunachala should be devoutly performed with milk repeating Pranava (Om)."
[Page 123, Verses 32-34]
Sri Pushparatheshwara Temple
A different story tells that Surya (the Sun) cursed by Lord Brahma, comes to Earth looking for a place to pray to Lord Siva. He chanced upon a beautiful pond, filled with huge lotuses, some of which even had 1,000 petals. Fascinated, Surya ventured into the water to offer his prayers. Touched by Surya's devotion, Lord Siva appeared as a Lingam on one of the lotuses and cured him. Filled with joy and gratitude Surya built a temple for the Lingam, in Gnayiru (Sun) Village.
It is said that the village used to be home of Kanva Maharishi. At the Temple there is also an altar for Sangili Nachiyar, the wife of Tamil saint-poet Sundarar. Sage Sage Agastiyar (author of Aditya Hridaya Stotram) is reputed to have stayed at Sri Pushparatheswarar Temple.