@AH
Sorry lol...
I wasn't clear😅😅
But overall she is asking him to come to her heart and her world. I will write my take a little longer.
It appeared like a beautiful piece of icy jade but actually exuded a poisonous aura that could pierce straight to the heart.
I think this particular highlighted phrase mean she wanted her heart or their hearts to be pierced by passion (I am taking poison symbol as passion)
Xiao Yao used all her effort to carve this piece of poisonous Ice Essence into the shape of a sea clam shell, she carved two sides of an exquisite white clam shell with wave ripples along the edges. When it was opened it resembled a blooming flower.
She want this passion to be bloomed.
Xiao Yao then used all sorts of exotic herbs and poisons to create two merpeople. She put the mermaid on the clam shell and she put the merman in the corner away from the clam shell. Xiao Yao also made red coral and colorful little fish.
Creating the two passionate merpeople.
The clear exquisite ice crystal, inside was the deep blue sea, and in the water were colorful little fish swimming and beautiful red coral. There was an all-white giant clam shell like a blooming flower and inside a beautiful mermaid sat on the clam shell. Her hair flowed like seaweed and her beautiful tail was half on the clam shell and half in the water. She had one hand on her heart and the other hand reached out towards the distance like she wanted to grab onto something or like she was calling someone to her. In the direction where her hand stretched there was a merman floating in the water. He appeared close to the clam shell but he was coldly staring outside the ice crystal ball so that it felt like he was actually in another world and not in the world of the peaceful isolated ocean with the mermaid.
I have a feeling that by having a hand on her heart means her heart needs healing (trying to heal by putting her hand because she has it broken). But is reaching out to the merman who was floating at another corner or seemingly in another world to come to her (to her isolated world, into her heart), to heal her, to be with her. But to her he's cold looking. Meaning. ..like she asking like "Why are you so cold!" (I guess this hand is taken by Jing at the end).
That's my own take. Im not Yaoliu fan. So may not be so romantic here...