Hello

 

I don't understand why Xemans can travel to time ?

You have to be just a heart to time travel, but Xemnas has not heart.

Saix and Xigbar too but I am not sure they are nobody.

Young Xehanort went forward in time and gathered all the forms of Xehanort through out time.

Young Xehanort went forward in time and gathered all the forms of Xehanort through out time.

 

This... And also ,Xemnas did grow a heart just like other organization members as Xemnas explained in DDD in TWNTW to Sora.

This... And also ,Xemnas did grow a heart just like other organization members as Xemnas explained in DDD in TWNTW to Sora.

 

That basically sums it up. It can be confusing at first, try watching the cutscenes again in theatre mode a few times, I know I had to.

If I recall, YX explained it himself.

Young Xehanort went forward in time and gathered all the forms of Xehanort through out time.

 

Ok thank you,

 

Only Young Xehanort travels to time, he's just a heart but like Yen Sid says "dreams may paint a fuller picture and restore what seems to be missing" whereas Ansem SoD and Xemnas are summoned by Young Xehanort.

By giving the most past Xehanort the ability to time travel, it put all the future Nort in a state where they could time travel as well via Young Xehanort.