Today, I watched a video of Zhu Zhiwen and his daughter-in-law Chen Yanan kneeling on the ground, arching their hands, whether they want to worship their brothers and sisters or something else, does anyone know

Today, I watched a video of Zhu Zhiwen and his daughter-in-law Chen Yanan kneeling on the ground, arching their hands, whether they want to worship their brothers and sisters or something else, does anyone know