I understand the spoilers of this drama because like them, I also dropped because of the reviews I've read but when I was watching Zhao Lusi's Love like the galaxy, I was enticed to look for more of her dramas and I remembered this again. It was my paid annual leave that I was so bored and don't know what to do so I took patience watching every episode in details and alas! It got me hooked in episode 4 until the last episode. I even rewatched it for the nth time, can't remember how many times but every time I have free time, I watch it again and honestly, I lost interest to watch other chinese dramas, I only watch Zhao lusi's dramas but this is the drama I watched countless times, second the LLTG along side Leo Wu and the Hidden love 2023 along side Zhen Zhe yuan, I only watched her drama with Yang2 2 times but this Love of a thousand years was the most I rewatched because I can feel the intense look on ZYC's eyes that I haven't seen with ZYC's other dramas with other Leading ladies.

I assure everyone who will give time to watch this won't regret it.

For the ending explanation based on my understanding:
Since it is a love between immortal and mortal, I think from the spriritual lamp being broken and scattered in the universe, Fu Jiu Yun(ZYC) gathered his energy and made another universe for ZLS and with her family to live in peace since he is a Deity.
I concluded this based on their conversation in each episode about ZYC's wish for ZLS. He wants her to live in peace without suffering and heartaches, spoil her with the richest in the world.

I would appreciate any comment or feedback but this is my analysis after all we are watching a fiction drama here.
But the best about this drama is the chemistry and how the main lead carried his part as the deity to spoil the mortal who he loves very much