Two's suspicion

And his perseverance was repaid. Once Eldrian managed to get a good grasp on the feel of ether, he also slowly managed to reign it in. Slowly, his mana took on the form of ether. 

This did not feel as natural as elemental mana, and keeping it contained and in its form was a constant struggle. Yet, despite these troubles, Eldrian smiled. He smiled widely. 

The feeling he was currently experiencing was similar to when he had forced his mana to stay in mana's raw form. It was constantly pressuring him to return to that form now, whereas back then it had constantly pressured him to return to the form of elemental mana. 

'This pressure is likely because it is unstable... I know the raw mana settled once I completed the conversion and pathways. For ether, I don't think that's the thing causing it to be unstable since that was never my aim.'