Maharshi has been looking into the “Siva Purana” this day. He says:
Siva has the transcendental and immanent aspects as represented by His invisible, transcendental being and the linga aspects respectively. The linga manifested as Arunachala originally stands even to this day. This manifestation was when the Moon was in the constellation of Orion (Ārdrā), in December. However it was first worshipped on Sivarātri day which is held sacred even now.
In the sphere of speech (the mystic sound AUM) represents the transcendental () and the Panchākshari (the five-syllabled mantra) represents the immanent aspect (Saguna).
Again Śri Bhagavān recounts the anecdote of Pārvati testing Rama. The story is as follows:—
Rama and Lakshmana were wandering in the forest in search of Sita. Rama was grief-stricken. Just then Siva and Pārvati happened to pass close-by. Siva saluted Rama and passed on. Pārvati was surprised and asked Siva to explain why He, the Lord of the Universe, being worshipped by all, should stoop to salute Rama, an ordinary human who having missed his consort was grief-stricken and moving in anguish in the wilderness and looking helpless. Siva then said: “Rama is simply acting as a human would under the circumstances. He is nevertheless the incarnation of Vishnu and deserves to be saluted. You may test him if you choose.”
Pārvati considered the matter, took the shape of Sita and appeared in front of Rama, as he was crying out the name of Sita in great anguish. He looked at Parvati appearing as Sita, smiled and asked: “Why, Sati, are you here? Where is Sambhu? Why have you taken the shape of Sita?” Pārvati felt abashed and explained how she went there to test him and sought an explanation for Siva saluting him.
Rama replied: “We are all only aspects of Siva, worshipping Him at sight and remembering Him out of sight.”