Its (the Left's) intensity derives from the fact that it's a family largely composed of, in a manner of speaking, orphans of bhadralok history (for we hardly hear of the mothers and fathers of party members), brought together not by accident but by idealism and its cousin, ideology. Bonds of orphanhood and kinship are particularly charged (as Kipling showed us in The Jungle Book) when they are self-created, and each party member is probably a bit of everything – mother, father, sibling, friend – to every other member.