Although Mei Yee's mother, Madam Leong Lai Cheng, tried to stay focused on helping her daughter become more independent, emotions sometimes got the better of her.

She reached her "breaking point" during a Christmas party with her cell group members, when Mei Yee was a little girl.

The little girls, including Mei Yee, were dressed as angels. But Mei Yee, who has difficulty controlling her bladder and bowels, wet herself.

"I suppose that when I looked at them together, the girls all looked like the beautiful daughter that I wanted so much to have. Then I realised Mei Yee is not like the others. That gave me an overwhelming sense of loss."

In that incident, she slapped Mei Yee, but regretted it immediately when her daughter just looked at her with puppy eyes.

"I hugged her and told her I was sorry, that I didn't mean to, and that I love her. I think the strong reaction was probably because I suddenly realised she would not grow up to be the same. Sometimes, it just hits home," she said.