Thaumcraft Mod is a drawing magic mod that performs miracles by physical objects in the form of Essentia and reshaping it. When using Thaumcraft Mod, you are able to use the magic around you in the form of “vis” (pronounced “Veece”). And the the purpose of this Mod is perform different tasks and create fantastic items. In Mathematicall Praeface to Euclid’s Elements written by John Dee in 1570, John said that “Thaumaturgy… which giveth certain order to make strange works, of the sense to be perceived and of men greatly to be wondered at”. Its meaning is thaumaturgy is the capability of a magician to work miracles and a practitioner of thaumaturgy is a thaumaturge, thaumaturgist or miracle worker.
The first thing you will need to craft is a wand. The first one available to you is the Wand of the Apprentice crafted as shown here (using a stick and iron nuggets):
You then place a bookshelf in the world and right click on it with the wand. This gives you the Thaumonomicon which explains almost everything else you will need to know about Thaumcraft.
Adding Thaumcaft world generation to existing worlds Yes, you heard that right. You can add all the ores, trees and other worldgen features to existing worlds by changing a few things in your config files. Remember: this could be risky so always backup your saves beforehand.
IMPORTANT: If you chose to generate TC ores and such in an existing world It is best to keep the config as-is. Do not switch everything off again after running the game or server once. As you explore chunks that have been explored in the past, but you haven?t visited yet the new TC will regen in them as well. If you turn it off before you get a chance to revisit them nothing will be genererated and you will have to do the regeneration from scratch to add it to those chunks which could cause doubling of ores and nodes.