The Guanyin of Nanshan is a 108-metre statue of the bodhisattva Guanyin, sited on the south coast of China’s island province Hainan near the Nanshan Temple of Sanya.

Guanyin is the Chinese translation of Avalokiteśvara, the bodhisattva of compassion. Bodhisattvas are enlightened beings who chose to stay on earth as accessible examples for Buddhist faithful to follow. Originally depicted as a male or gender-neutral entity able to take on thirty-three manifestations, Avalokiteśvara is a compassionate savior who hears the woes of humankind, regardless of age, gender, or social class.

https://www.metmuseum.org/art/collection/search/42731

However, in imperial China, Guanyin became increasingly cemented as a female figure. Similar to the Virgin Mary, Guanyin became a popular intercessor for humanity to understand divine salvation. While there are a few different names to refer to this Bodhisattva, there are even more different forms that Guanyin can take when appearing to sentient beings in order to guide them away from suffering.

Traditionally, China was a very patriarchal society; a system reinforced by Confucian principles which put pressure on women to obey their husbands and give birth to sons (instead of daughters). As a result, women were generally the ones asking for Guanyin’s help in order to achieve these goals. In addition, it was thought that a woman must commit to one man for her whole life (even after his death), therefore it seemed more appropriate for a woman to worship a deity in female form. In this way, Guanyin starts to take on more feminine qualities such as kindness and grace and, in female form, she is seen as more accessible to women.

It is believed that Guanyin is androgynous or perhaps without gender. According to the Mahāyāna sūtras, it makes no difference whether Guanyin is male, female, or genderless, as the ultimate reality is in emptiness (Skt. śūnyatā). Guanyin can take the form of any type of God including Indra or Brahma; any type of Buddha, as well as any gender male or female, adult or child, human or non-human being, in order to teach the Dharma to all sentient beings.

This post comprises excerpts from:

Wikipedia Guanyin page

Guanyin: the Bodhisatva of Great Compassion