Dohara

VJKK VJKF,

Can someone plz tell me why we recite the dohara after ardaas??
Thnx VJKK VJKF

And pls also clarify this doubt.
What's the actual phrase guru granth ji maniye? Or panth khalsa maniye? Source a book of kishan singh australia.

Also can someone plz senda link or something on the extra long dohara thnx!