Man’s sense of spirituality signifies his natural evolutionary trend. It expresses his inner urge to expand and realize his divine potential. The primitive man externalized this divine potential by worshipping a stone or tree, deriving inner satisfaction and strength from such outward manifestations of divinity. Often, through intuition, he placed a stone or symbol at a spot naturally vibrant with spiritual energy, and the act of worship further reinforced his inner spiritual pursuit. This primal, unconscious striving eventually unfolded into the profound spiritual wisdom of the sages, who systematized it into sciences of spirituality such as Yoga and Tantra. Temple worship, based on these spiritual sciences, is an applied form of practice where external rituals serve as means for inner spiritual realization.

Between the primitive man’s symbolic worship and the later evolution of temples, there were several transitional phases. One such phase is the Kaavu tradition in Malayalam—sacred groves of tall trees and shrubs under which stones or images representing deities are worshipped. Many of these Kaavu-s continue to exist alongside temples today, and some have evolved into full-fledged temples over time.

As mentioned earlier, the word Ayyan was traditionally used in Tamil to refer to the Supreme Godhead, and Ayyappan likely evolved from this term. Since ancient times, Ayyappa has been worshipped in Kaavu-s across Kerala—these places are still known as Ayyappan Kaavu-s. Until about half a century ago, the Sabarimala pilgrimage was primarily undertaken by people of the Travancore region in South Kerala. Even before the pilgrimage gained popularity in North Kerala, that region already had several Kaavu-s where Ayyappa was worshipped. Over time, the concepts of Dharma Sastha and Ayyappa became fully integrated across Kerala.

Some of these Kaavu-s and temples may have been centers of Jaina or Buddhist worship during the flourishing of those faiths in Kerala. With their subsequent decline, they reverted to earlier Hindu forms while retaining certain Jaina or Buddhist rituals. It is important to understand that Hinduism, Jainism, and Buddhism are not rigidly separated systems but interrelated aspects of the same cultural and spiritual continuum—constantly evolving and renewing itself. According to India’s spiritual vision, despite differences in practices, all seekers are ultimately striving toward the same divine reality through their respective paths.

Legend has it that Kerala was reclaimed from the sea by Sage Parasurama, an incarnation of Lord Vishnu, who hurled his axe southward from Gokarna. The axe fell at Kanyakumari, causing the ocean to retreat and reveal the strip of land that became Kerala. The sage divided this land into sixty-four parts and bestowed them upon Brahmins brought from south of the Vindhyas. Parasurama consecrated several temples dedicated to Lord Dharma Sastha along riverbanks and mountain regions as guardians of the land. Among these, five are particularly significant: Sabarimala, Achankovil, Kulathupuzha, Aryankavu, and Sasthamkotta. Another notable Sastha temple at Pakkil in Kottayam District, also believed to have been founded by Parasurama, has its own unique features.

The idols in these temples represent different divine aspects of Lord Dharma Sastha. At Achankovil, He is depicted as a Grihasthaashrami (householder) accompanied by His consorts Poorna and Pushkala, symbolizing perfection and prosperity. At Aryankavu, He appears as an adolescent; at Kulathupuzha, as a child; and at Sabarimala, as a Brahmachari (celibate).