Theoretically, the word cosmos which means order is the name of millions of connectivities scientifically woven into each other, and working to and fro, to create a composite, living whole.
In terms of sound, the cosmos is composed of hundreds of ragas connected and woven into each other, a system that is studied under the name of moorchana from the word 'moorch' which, though it refers to a 'fainted' condition, actually refers to harmonies, the swara or note-scale connectivities that lie asleep in the universal subconscious mind, until they awaken.
Pandit Amarnath speaks of these harmonies or moorchana-scale connectivities as being rooted in each other each time in a new 'Sa' and from each root creating back and forth routes as well, which is the real picture of their cosmic order. It is like all the roads of the world being both rooted in each other and from each root, up and down routes to each other. Just as each road or route finds by the method of the shifting of its base from one turn to the next, one harmony finds another by shifting its root or Sa from one point of its scale to another, to get to another equidistant order of notes, and another harmony, to sing or to play.
That is how we come to the study of raga names. Pandit Amarnath relentlessly campaigned for Hindustani ragas to be named by their harmonies or moorchanas , or other precise points of origin, rather than, as was the more prevalent practice, by the various moods that they evoked when they were sung, which were variables. For example, a rare raga being played by the name of Deepavali, which he rechristened as Pancham Kalyan, having discovered that it was from the moorchana of the pancham or fifth note, the Pa, of the raga Puriya Kalyan. Listening to the raga, it has no specific ambience in terms of Deepavali.
Harmony is the symphony of the road, the melodic terrain of the raga. And like all roads, as it goes, so it returns. Only to be finally moving up and down cyclically. Panditji had a simple way of explaining this. Your uncle is your father's brother. That is one way. But you are also your uncle's niece. That is the same way, but from the opposite direction. And the relationship, like all others, lives cyclically, in a to-and-fro response. The connectivities form an inevitable, teeming weave, which is the virat, the cosmos, its movements stemming from each other, and driving forth, and back, to the stems, to the roots.
What is profound about the moorchanas or harmonies is that the scale relationships are revealed only to the subconscious mind during meditation. Till then they are as good as dormant. It is when singing the raga with a pure mind, that the musician will 'hear' the harmonies related to the scale that he is singing, which is how untrodden roads ^ the new ragas ^ came to be discovered by the rishis and sages of yore!
What is even more profound about moorchanas is that the true sage will never say he 'found' them, but that they 'revealed' themselves to him ^ in terms of their parentage and ancestry, and of their place(ment) in the universal family of scales. He christened them accordingly. That is the story of the cosmos and of its harmonies, of the virat and its moorchanas, and the story of revelation through meditation.