[[Neon Genesis Evangelion]] song '"Three of Me, One of Someone Else":[https://www.youtube.com/watch?v=dxKr446vMXM]' by Shiro Sagisu, referring to [[Ayanami Rei]]'s three incarnations from the original anime continuation, known as 'Rei I', 'Rei II' and 'Rei III', [spoiler]and Rei's being a clone of [[Ikari Yui]],[/spoiler] while also referencing Eric Berne's transactional analysis and the PAC ego-states of Parent, Adult (self) and Child.
three as one