What is the song "You Lean on Me and I'll Lean on You"?

"Heart to Heart Hand in Hand".

According to Baidu Encyclopedia, Hand in Hand with the Heart is a song sung by Yang Yuying, with lyrics by Wu Songjin and music by Han Chengguang, and is included in the album Wind Contains Love and Water Contains Smiles, which was released on September 2, 1992, and was released on September 2, 1992, with lyrics by Wu Songjin and music by Han Chengguang.