This number 18 very significant in Vedic tradition – Bhagavad Gita 18 chapter, Mahabharat War 18 days, all the major temples, whether it is Sabarimala, Madurai Kallazhagar temple or the Engoi Mallai  – always 18 steps and the 18 akroni Sena fought the Mahabharat war. 18 is very significant number, but all 18s came after this Isavasya Upanishad’s 18 verses. This is the first 18; because, please understand, Ishavasya Upanishad is the first Upanishad.

Rama, listen, Rama when He lived in Ramanagaram, received all the 108 Upanishads at a time from Mahadeva under our Banyan Tree, and after the victory when He came back, He brought, see after the victory and He came back, he had Pattabhishekam and he brought Hanuman and showed all the places He traveled. They had a vacation tour. At that time, Hanuman also came to this place, and then again sitting in Ramanagaram, that hill, Rama put the whole 108 Upanishads names together, what He received from Mahadeva and repeated to Hanuman, that is Muktikopanishad.

Please understand, whatever I am saying is Fact, Truth and Reality from the Cosmic archives, the Akashic Records sooner or later you will find evidences for this.

So Isavasya Upanishad is the first Upanishad as per Ramachandra Prabhu as He heard from Mahadeva and due to various reasons nobody else has put all the 108 names together. See from Mahadeva, Devi heard all the 108 Upanishads, Saptarishis heard, Kapila heard, Nandi heard, Subramanya heard, Rama also heard, in all these people, nobody else has chronically recorded it, nobody chronicled the whole thing, nobody put all the 108 names in a list other than Rama. Rama always had the habit of staying only in the place where Jyotirlinga is there. Wherever He stayed, He stayed only with Jyotirlinga, see Nasik, Trimbakeshwara, Rameshwaram. Before He won and came back, there was no Ramalingam, because that deity was installed by Sita but He never stayed there. The first Ramalingam, Rameshwara installed by Rama is this Ramanagaram Temple. Ours is Swayambhu, the Nithyanandeshwara here the Mahadeva here is Swayambhu, that is why He stayed here, so that he can come and have puja here everyday.

He can come and do puja every day but after killing Kakasura, to remove that sin, He installed a lingam in Ramanagaram Temple, that is Rameshwara, that deity is there installed by Him—then He moves and goes to South after Sita was kidnapped, He goes to Sri Lanka and you all know the Ramayanam story. When He was here staying with Sita and Lakshmana having beautiful vacation, that time He was worshiping Mahadeva under our Banyan Tree, the same Svayambhu Linga, please be very clear, the same Swayambhu Linga, and here under the Banyan Tree, all three of them received, with Sapta Rishis, the 108 Upanishads from Mahadeva. Mainly the teaching was given for the sake of Rama, because all others have already received it. Devi, Nandi, Sapta Rishis, all of them have already received it and Sapta Rishis were staying in Ramanagar, that hill when Rama came here and stayed so they inspired Rama to hear Upanishads from Mahadeva directly so He came and worshipped her. In the presence of Devi, Nandi and Sapta Rishis, Mahadeva revealed Upanishads to Ramachandra Prabhu, Lakshmana and Sita Birati, for all 3 the Upanishads were given then the Kakasura vadh (killing) happened, then He moved, He continued and Sita was kidnapped, then He went to Lanka and conquered the Lanka and brought Sita back. When He came back He directly flew to Ayodhya for Pattabhishekam, after the Pattabhishekam along with Hanuman, Sita and Lakshmana, Bharat, Shatrughna, the whole family, they came like a vacation where Rama was explaining to everyone, what all happened, where all they stayed. So that time when they came here Rama showed this Kshetra to all the family members and they again went and stayed back in the Ramanagar hill, there Rama teaches to Hanuman what He heard from Mahadeva. The whole sequence Rama records in Muktikopanishad, that sequence only we are following. So this sequence is delivered by Mahadeva under this Banyan Tree and recorded by Rama to Hanuman. We are following the same sequence as per that sequence Ramachandra Prabhu is the oldest recording, we were able to get it about this 108 Upanishads. So we are following that, the 108^th Upanishad, Muktikopanishad, Sri Ramachandra Prabhu records all the 108 names, as per that 108 names, this is the first Upanishad, Isavasya Upanishad, 18^th verse.