Faluel instructed Lith, Solus, and Phloria how to modify Invigoration by taking shallower breaths and holding them in longer. That way, the world energy would only flood the outer layer of their bodies without providing useless information about the single cells.
The Hydra's breathing technique, Lifestream, could see more than just life forces and mana cores, but she couldn't entrust such abilities to someone so young whose wisdom she had yet to put to the test.
'I'm sorry, Lith, but knowledge is the greatest power a mage can achieve. Too much and too fast can be toxic for a young mind. Too many of my children became drunk on power ad let their natural gifts corrupt their personality.' Faluel thought.
Lith and Solus needed a few attempts to succeed, but mostly because changing Invigoration that much felt almost like betraying a dear friend. The breathing technique was as old as Lith and had saved their lives countless times.