The mother of a four-year-old Taiwanese girl brutally decapitated by an apparently deranged man on Friday (April 1) urged well-wishers to transfer their goodwill towards the family into "action for society" instead, to prevent such incidents from happening again.

The killing of the child nicknamed "Little Light Bulb" has gripped the Taiwanese public, who have erupted in anger at the perpetrator of the seemingly random attack.

But the girl's mother Claire Wang, 36, has been a calm voice of reason and hope amid the furore, by using social media to reach out to the public even as her family grieves.

Her composure and magnanimity have been widely praised.

Ms Wang and her 44-year-old husband David Liu graduated from the University of Southern California, CNA reported. Mr Liu works in the high-tech sector, while Ms Wang is a stay-at-home mum.

They have three other children, a nine-year-old girl and two-year-old twins.

Ms Wang, who says she is a free-thinker, seemed determined to turn the tragedy of her daughter's death into a lesson for the greater good.

In her latest Facebook post, she said the family was "overwhelmed" as the memorial area for her daughter was full, and expressed concerns that she and her husband would be unable to reciprocate the "blessings".

She then urged the public to keep Little Light Bulb's memory alive by "filling every corner of our society with love".

Here this is what she posted, in Chinese, in her latest post on Facebook on Friday:

"Since young, I have always felt that I am very lucky during my growing-up years and throughout my life. The people around me are such good people and I have always felt so much love and care. Be it my family, school, work, or society. I have always felt contented, because of all of you... who made me believe in the good of this world... Perhaps, Little Light Bulb felt the same too, as she has always said that this world is a beautiful place.

"However, in this society, there are still many people in less beautiful worlds, they still have many inadequacies, psychological inadequacies, materialistic inadequacies.

"Psychologically, let's wait for everyone to slowly regain that kind and beautiful piece of mind.

"Materialistically, let's implore everyone to turn their kind wishes for Little Light Bulb into concrete action, and help pass on her love for this beautiful world.

"Like what we have told the media, what we have written on Facebook, really, we have received all your sincere wishes, and as for material comforts, please turn them directly into real action to support those organisations in need.

"However, the memorial area remains full, and it was so full that we were overwhelmed... As always, we have benefited from society, but have yet to repay society anything. In this moment and time, it is still so. David and I are unable to accept so, so many blessings, we truly feel incapable of repaying them in the future. Such overwhelming blessings and the inability to reciprocate have made us very afraid... afraid that our lives will be shortened.

"In the future, we still have a long way to go, many children to take care of, we are truly afraid that by receiving too much, we will be extremely indebted as well... We really hope that everyone can transform their good wishes into action for the society, let Little Light Bulb continue shining on brightly, which I believe is what she came into this world for.

"Do your part to fill every corner of our society with love, do your part to make every person in our society feel content, only then will such incidents never happen again."

Translated by Kua Yu-Lin