The Sheikah Heirloom is an item from The Legend of Zelda: Breath of the Wild. It is piece of ancient Sheikah technology that has been pasted down within Impa's family for generations. According to Paya, an ancient prophecy states the Sheikah Heirloom will grant a gift of antiquity to a hero chosen by the heirloom. Impa's family has served as its protectors during eight generations. Impa herself is quite protective of the heirloom as she requests Link to respect the rule not touch it despite his esteemed and heroic status.
The Sheikah Heirloom plays a prominent role during the Shrine quest "The Stolen Heirloom". One of Impa's bodyguards, Dorian, has stolen the Sheikah Heirloom under the orders of a Yiga Blademaster. He was a former member of the Yiga Clan who killed his wife and forced him to spy on Kakariko Village by threatening kill his two daughters. He eventually refused to continue spying for them, so they blackmailed him into stealing the heirloom by threatening the lives of Paya and Impa. Link defeats the Yiga Blademaster and uses the orb to activate the Lakna Rokee Shrine near Cotera's Great Fairy Fountain, fulfilling the prophecy.