The temple is believed to be the first of the 108 Shiva temples established by Lord Parashurama. It has stood for over a millennium, witnessing the rise and fall of various Kerala dynasties. In 2015, it was awarded the 'Award of Excellence' by UNESCO for the conservation of its heritage structures, highlighting the community's commitment to preserving its ancient integrity.

The Koothambalam and Ancient Murals

The temple is an architectural marvel. The Koothambalam (Temple Theater) is considered one of the finest in India, featuring exquisite wood carvings and perfect acoustics. The Sri Kovil (Sanctum) is circular with a conical roof. The walls of the shrine are decorated with centuries-old murals, including the famous 'Vasuki-shayanam' and 'Nataraja', which are icons of Kerala's artistic history. The massive stone walls (Mathilakam) and the giant banyan trees surrounding the temple create a micro-environment of deep silence and peace.

Legend says that Parashurama, after creating Kerala, wanted a place to house the energy of Lord Shiva. Shiva manifested here in the form of a brilliant light. To cool this intense energy, Parashurama began the tradition of 'Abhishekam' (anointing) with Ghee. Over the centuries, this ghee has never melted or gone rancid, even in the tropical heat, and has formed a massive mound covering the original Lingam.

Worship is traditional and strictly follows ancient tantric rites. The most unique aspect is the Ghee Abhishekam. Devotees offer ghee, which is poured over the deity. Remarkably, this mountain of ghee does not attract insects and never spoils. This ghee is later given to devotees as 'Prasadam', believed to have incredible medicinal and spiritual properties, especially for brain-related ailments.

The Thrissur Pooram (April/May) is the world-famous highlight. While Lord Vadakkumnathan is the host and does not participate in the procession himself, the festival takes place in the 'Thekkinkadu Maidan' surrounding the temple. It features thirty caparisoned elephants, the 'Kudamattom' (umbrella exchange), and the 'Ilanjithara Melam', the world's largest traditional percussion ensemble performed under the temple's Ilanji tree.

A popular piece of modern folklore is that the Lord Vadakkumnathan acts as the silent judge of the Thrissur Pooram. It is said that the elephants and the drummers perform with such intensity because they feel the 'gaze' of the Lord from within the silent sanctum. Another belief is that the temple ground, despite being in the center of a bustling city, remains several degrees cooler because of the 'cool energy' of the Ghee Mountain. Many locals also believe that the giant Banyan trees surrounding the temple are inhabited by guardian spirits who protect the sanctity of the town.