What do you mean by helpless thoughts?

It means: an idea that can't be handled. It's also a song.

"Helpless Missing" is a classic Mandarin love song created by Taiwan Province's "Queen of Sweet Songs" Han Baoyi. It was widely spread in China and Southeast Asia in the late 1980s, and it still has a high degree of singing, becoming an eternal classic love song in the hearts of a generation.

The song comes from the album "Pink Memories", which was first introduced to the Chinese mainland market by China Guangzhou Audio-Visual Publishing House on 1987, and its sales exceeded 3 million that year. Han Baoyi became the first singer from Hong Kong and Taiwan to sell more than 3 million albums in Chinese mainland, so Han Baoyi was nicknamed "the idol of 3 million people".

There is also a Minnan version of this song, which was sung by Jiang Hui. The song is called "Helpless Acacia".

Another version is Qin Yong's Helpless Acacia.