In ch 3 of BLAME NO ONE BUT YOURSELF, Fr Doyle sums up his chapter with the following:
Each bride and each groom brings a dowry to the marriage, a dowry made up of two individual personalities, each with it's own particular history and background. Each dowry is made up of the sum total of good or bad constitutional factors, good or bad environmental influences, good or bad habits, good or bad ideals and moral principles, good or bad religious background - in a word, the good or bad remote preparation for marriage. I beg of you, please do not treat such things as trifles.