Board Thread:Theories and Speculation/@comment-28136690-20160517141406/@comment-25122992-20160517164009

Ok, there's a constant confusion between two Tenseigan terms. I'll try to explain it.

The first of them is Tenseigan as a doujutsu, it was firstly awakened by Hamura and then by Toneri after him; it actually bears the power to move the Moon, but the main tool of this was different - it's the second term, Tenseigan as Energy Vessel.

This vessel was created by Ootsutsuki clan and is powered by their Byakugans eyes they constantly sealed inside, and the core of this vessel are presumably Hamura's Tenseigan eyes. So, this tool held the main power of the Ootsutsuki clan on the Moon, it was used mainly to improve the conditions on the Moon so they could normally live on it, yet when the war between Main and Branch Houses of the clan emerged, the Branch House used the Vessel as a tool for battle, wiping out the armies of their opponents. And yeah, the Energy Vessel was responsible for manipulating the Moon movements, but Toneri demonstrated he can move the Moon already after the Vessel was destroyed, with the sheer might of his fully awakened Tenseigan eyes.