A cold winter gives way to a buoyant spring and a balmy summer. That’s nature. The chill springs a surprise sometimes and prolongs. Such a situation warrants better insulation—which in political terms is called introspection, a review of the wrong steps to put the best foot forward. That’s precisely what the BJP is doing after losing three Hindi heartland states in the assembly elections, barely six months before the party goes to the voters for a second term of Narendra Modi’s government.