I am not a huge fan of Rammstein. In fact, I don't really like Rammstein at all. I think there are much better German bands. That being said, there is an interesting song they did that is a retelling of the Greek myth of Hermaphroditus (found in Book IV of Metamorphoses by Ovid). It is from the perspective of Hermaphroditus (who was born a bio-male!!!!) reflecting back upon the moment when the water nymph, Salmacis, was overcome by lust for the boy and tried to seduce him, but was rejected, so she pleaded with the gods to let her become "one" with him. The gods granted this wish, and Salmacis and Hermaphroditus became two souls in one body, with a mixed male/female body.
Hermaphroditus recounts in this retelling how he has grown to accept himself and love who he is. He also reflects on how being of "two genders" has changed how he interacts with the world. Unfortunately, english translations of the song badly butchers the meaning behind the words and totally do not take in account the story that inspired the song, so therefore they interpret many of the lines wrong. It results in an incredibly crude and disgusting translation. The song, instead, is meant to be one part a celebration of self-acceptance and one part "fuck you world! for seeing me as a disgusting (derogatory) "hermaphrodite!". He describes the subtle meaning of what it means to be of two souls that are now one person and how that changes who he is.
Although I do not see myself as two distinct people in one body, like Hermaphroditus did (and the way many who have multiple personalities), because I am only one soul, I still connect with the situation of moving through the world as two genders because I have to pretend I am two distinct people that are of two different genders (at least on the surface. My surface identity does not change who i am underneath). I feel strongly that if culture and society did not insist on me choosing one or the other gender, I wouldn't feel so pressured to adopt two identities and presentations. I could just be me, without judgement! There have been many cultures throughout time that have recognized this type of person. In some cultures, such as the native american "two spirit", these people often become powerful leaders and shamans. Obviously, the greeks felt a similar way. Hermaphroditus is a God.