Balls and dancing parties

Everyone is familiar with the war against balls and dancing waged in his parish by the holy Curé of Ars.  But what exactly did the saint find objectionable in them and why?  And what should be thought of more modern forms of dancing?  Familiarity often removes a due appreciation even of these dangers, and both in cities and country places there are Catholics who seem, to have become sceptical as to the very existence of the danger attendant on their supposedly innocent recreations.
It is but seldom, in these days of error and laxity of morals, that the tastes and habits of what is termed genteel society are regulated by the principles and rules of Christian morality.