Shikhandi, who was Amba in the previous life, is anxious for the Kurukshetra war because he wants to fight with Bheeshma. Bheeshma had insulted Amba by refusing to marry her after he had abducted her. Amba had sworn to take revenge on Bheeshma, so she was reborn as Shikhandi, the elder brother of Draupadi. The opportunity for Amba’s revenge has come.