團結必須有情感的共融及理念的共享

家庭成員住在同一棟房子、一起吃飯、睡覺或是為了滿足其他需求，不足以稱得上團結。還必須有情感的共融及理念的共享。團結表示親密：它是思想、心靈、意志的結合。

The union in a family is not only because the members live in the same house, it is not enough just to come together to eat, sleep or for other needs. There must also be union and sharing of feelings and ideals. The union is something profound: it is a union of thought, mind and will (PrP VIII, p. 190).