"Your my inspiration kria , when you can leave dance for your mom , i can leave it for my dad's happiness"^_^
This one line , had a big impact on all KR fans' hearts . How couldn't it?
Rey's line showed that he remembered her sacrifice :'). That he understood the pain she had gone through.
That her sacrifice had given him the strength to take this decision.
We fans had begged for Rey to know what Kria had gone through! But her wishes were un heard that time.
Now , not only rey got to know what had actually happened , he also felt the pain and took inspiration from his Love , he understood how difficult it would have been for kria , and that raised his Love towards kria.
I personally loved his dialogue. I don't have words to explain that , so i wrote whatever that came in my mind. :D