I am now standing in a void. Is this another vision? The world changed into the Tree of Souls, but it felt different. It feels more powerful like I am something more. I feel at peace with my soul and mind. Seeds were flying around me. 

Your time is not yet up.

"Eywa?"

You must find the strength to continue, for Lo'ak and his family.

"I have already seen it play out. I don't know if I can stop it or not."

You must stop it.

"How?"

Together you must succeed. You love Lo'ak don't you?

"Yes. Very much so."

Then you will find the strength to stop Quaritch. 

"I'll kill him."

No.

"What?"

You must not kill him.

"What? He tortured me for a decade! He deserves to die!" 

Maybe, but not by your hand. If you kill him, your no better than he is. Life is precious.

"I guess you're right, but what if he kills me??"

He won't. I will protect you.

"Promise?"

Promise. I look over all my children.