38. In line with the sound pedagogical principles of a gradual and comprehensive personal growth, proximate preparation must not neglect formation for the social and ecclesial tasks proper to those who will have new families as a result of their marriage. Family intimacy should not be conceived as being closed in on itself, but rather as a capacity to interiorize the human and Christian riches inherent in married life in view of an ever greater giving to others. Therefore, in an open concept of the family, married and family life requires the spouses to recognize themselves as subjects having rights but also duties towards society and the Church. In this regard, it will be very useful to encourage reading and reflecting on the following documents of the Church which are a rich and encouraging source of human and Christian wisdom: Familiaris Consortio, the Letter to Families Gratissimam Sane, the Charter of the Rights of the Family, Evangelium Vitae, and others.