"To Tirzah" is a poem by William Blake that was published in his collection Songs of Innocence and of Experience. It is often described as the most difficult of the poems because it refers to an oblique character called "Tirzah", whose identity is not directly stated. It is a Hebrew name that appears in the Torah, meaning "she is my delight". According to Northrop Frye, Blake identified the name Tirzah with worldliness, because the name appears in the Bible to refer to both a rebellious town and to one of the Daughters of Zelophehad. The latter story was about female inheritance rights which were linked to restrictions on marriage and the maintenance of tribal boundaries.