Understanding Ritual of Nathema and Emperor's capability to perform Force Drain
A discussion about ground realities of the subject event took place in one of the threads and I noticed that some members are confused about what happened during this event. I feel inclined to address this confusion for all members of this community.
Reference thread: http://www.killermovies.com/forums/f86/t598621.html
This was a complex event that have been mentioned in multiple sources and multiple statements (some much more detailed then others). It is important to focus on all of the statements to understand what exactly happened during this event. Some members are taking wrong cues from select few statements and interpreting the event in wrong ways.
First, it is important to understand what a ritual is.
Ritual is just a meditative approach to perform a specific action or unleash a Force power. With this approach, a Force-user can fully concentrate on a specific action and perform it on a grand scale by gathering lot of power due to sheer magnitude of exertion involved. With gesture approach, it is not possible to unleash Force powers to greatest extent. Exertion is the key factor.
ANALOGY: a Force-user might fill a building with Force lightning using ritualistic approach, but he may not pull this off with a simple gesture. Their is difference in the level of exertion in both cases.
Rituals can be performed single-handedly as well as with combined might of several Force-users, no restriction in this matter.
EXAMPLE: Darth Plagueis and Darth Sidious performed a ritual to alter the balance of the Force at cosmic level in favor of the dark side. This wasn't magic or something, they pulled this off by continuously meditating for some months with their combined might, they gathered lot of power in this manner to perform a specific act. It is obvious that these two Sith Lords could not have accomplished this mammoth objective with just gestures.
---
Ritual of Nathema and its ground realities:
Now that the concept of ritual have been explained, it is important to understand what happened during the ritual of Nathema.
In the aftermath of Great Hyperspace War, Emperor Vitiate somehow managed to summon thousands of survivors (Sith) to his homeworld and convinced them that they could acquire great power if they would join hands with him to perform a specific action: a ritual that would supposedly grant them great power (false promise in reality).
He stayed there for a hundred years. When Marka Ragnos fell, Lord Vitiate did not join in the mad rush to claim his position. He was not part of the Great Hyperspace War against the Republic. When Naga Sadow and Ludo Kressh fought for leadership of the Sith, he took no side. But in the aftermath of the war—after our defeat at the hands of the Republic and our flight to escape the massacre of our people by the Jedi—he emerged from his solitude to call a great council of all the Sith Lords who remained. He invited them to his palace on Nathema, built on the site of his childhood home, the place where he had killed his adopted father and tortured his mother to death. He invited them to participate in a ritual to unlock the full potential of the dark side; he promised they would unleash power beyond anything they had ever witnessed or imagined. (Darth Nyriss, Star Wars: The Old Republic: Revan)
The red highlighted part is correct in the sense that the Sith did manage to unleash power beyond anything they had ever witnessed or imagined with their combined might during the ritual. But it is important to understand what this power is; this power is basically emission of raw dark side energy which engulfed the entire planet in the form of a nexus, the planet was temporarily transformed in to the largest nexus of the dark side the galaxy would ever see.
The ritual lasted ten days. Lord Vitiate orchestrated the sorcery and the planet Mediraas was consumed by the largest dark side nexus the galaxy would ever see. (Star Wars: The Old Republic: Encyclopedia)
Below is just a different interpretation of coverage of the nexus of the raw dark side energy:
But the ritual was not confined to the doomed Sith Lords. They were but the eye of the storm; the center of a vortex that spread across the entire planet. (Darth Nyriss, Star Wars: The Old Republic: Revan).
Now, it is important to understand Emperor's actions during this ritual. Emperor was a participant in this ritual and joined hands with other Sith Lords to formulate the largest nexus of the dark side ever. However, it was he who benefitted from this development, no one else did. After the nexus of dark side was created, Emperor betrayed his allies. He initially telepathically subjugated them and then drained all of them, he pulled this off with his own abilities.
Every man, woman, and child on Nathema died that day. Every beast, bird, and fish; all the insects and plants; every living being touched by the Force was consumed. When the ritual ended, Nathema was no longer a world. It was a husk sucked dry. Lord Vitiate sacrificed millions, stealing their life force to make himself immortal. Their deaths also made him stronger than any Sith who had come before, and he ceased to be known as Lord Vitiate. On that day, the Emperor was truly born. (Darth Nyriss, Star Wars: The Old Republic: Encyclopedia)
&
Calling on the dark side, Lord Vitiate devoured them. He fed on their power, absorbing it into himself, utterly obliterating all traces of his victims. (Darth Nyriss, Star Wars: The Old Republic: Encyclopedia)
&
Lord Vitiate takes command of the Sith Empire, now in shambles following the Great Hyperspace War. He executes the Sith Council and consumes the life force of thousands of Sith Lords in a terrifying ritual that extends his life and vastly increases his capacity as a practitioner of the Force. (Star Wars: The Old Republic: Encyclopedia)
IMPORTANT: Since Emperor was a participant in this ritual, it is likely that he tapped in to the nexus of the dark side energy encompassing his homeworld to pull off Force Drain on planetary scale, but this is still his own action, he betrayed his allies. Power gathered from ritual was not Force Drain in any way or form, it was raw dark side energy.
Please, keep in mind that Emperor Vitiate was a supremely powerful Force-user even prior to augmentation he experienced from his actions during the ritual:
The child who will come to be known as the Sith Emperor is born. Black-eyed, heartless, and supremely strong in the dark side of the Force, the boy seizes control of his homeworld by the age of 13 and earns the title Lord Vitiate. He amasses an army of Sith followers and turns his back on Imperial politics to hone his skills in the dark side. (Star Wars: The Old Republic: Encyclopedia)
--
Below are simply neutral interpretations of the aforementioned development, the Force Drain aspect, they do not contradict other revelations.
The Sith Emperor, history's most powerful dark side master, performed a ritual of incredible scope to consume the life energy of every being on his homeworld. (Star Wars: The Old Republic: Encyclopedia)
&
When the ritual ended, Lord Vitiate emerged as the only survivor. The pain, energy, and suffering of every living entity on the planet fueled his power and would prolong his life for centuries. The lifeless planet of Mediraas became a void in the Force and was erased from history. From that moment forward, the world would forever be known as Nathema, birthplace of the one and only Sith Emperor. (Star Wars: The Old Republic: Encyclopedia)
The highlighted aspect did not happen automatically, Emperor Vitiate performed this action as apparent from 3 aforementioned (additional) revelations. The ritual wasn't a sentient being or something which granted Emperor greater power and immortality on silver plate. Sorry, Nephthys, you are utterly wrong about this matter, the codex entry that you have cited have been retconned by newer sources such as Star Wars: The Old Republic: Revan and Star Wars: The Old Republic: Encyclopedia. Learn to connect the dots instead of accusing me of not paying attention.