I can see how some clergy and liturgists would be a bit squeamish about the notion of “personalizing” a wedding liturgy. But I see the Holy Father’s point in this section. The operative adjective is “profound,” and the verb used here is “appreciate.”
213. In their preparation for marriage, the couple should be encouraged to make the liturgical celebration a profound personal experience and
to appreciate the meaning of each of its signs. In the case of two baptized persons, the commitment expressed by the words of consent and the bodily union that consummates the marriage can only be seen as signs of the covenantal love and union between the incarnate Son of God and his Church. In the baptized, words and signs become an eloquent language of faith. The body, created with a God-given meaning, “becomes the language of the ministers of the sacrament, aware that in the conjugal pact there is expressed and realized the mystery that has its origin in God himself”.(John Paul II, Catechesis (27 June 1984), 4)
For your reference Amoris Laetitia is online here.