a) Notice both sides are suggested by media/medius/middle. Notice furthermore, that choosing either side imbalances ones choice against the other side.

b) The only thing that sustains matter (life) within that picture is the line (inception towards death) in-between both suggestions.

c) For a jew...a gentile isn't white or black, but whatever identity a gentile chose from a jewish suggestion. Once chosen; the jew will contradict the identity by suggesting an inversion to it.