The following is a video that I created for my parish answering the question: What is the importance of using both the vernacular (native language) and Latin at Mass?
In this video, we look at Sacrosanctum Concilium, the document on Liturgy from Vatican II, and how it allowed the use of the mother tongue:
In Masses which are celebrated with the people, a suitable place may be allotted to their mother tongue.
- Sacrosanctum Concilium, 54
But, we keep in mind that Vatican II did not eliminate Latin from the Liturgy:
Particular law remaining in force, the use of the Latin language is to be preserved in the Latin rites.
- Sacrosanctum Concilium, 36
I look at the importance of both the mother tongue and Latin, and how we can balance the two.
