The Humans were sad because the Most Sacred Cat remained vacant since Darth Vader transcended his earthly, furry form and trotted across the Rainbow Bridge.
Silly Humans!
They failed to understand that Darth Vader bequeathed his tree to me, Neo, his Spiritual Son.
—Neo
Daily Feline and Canine Wisdom 
So happy to see you ascend to the Most Sacred Cat Tree. You fit it well. Darth Vader is purring at you with joy. Purrs
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Good for you filling the ancient void, Neo.
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