Week by week, the Successor of St Peter meets with the faithful, either in St Peter's Square (summer time) or the Paul VI Audience Hall (winter time), for the General Audience. Whilst the immediate listeners of the Holy Father's catecheses on these occasions are the pilgrims gathered in person with the Pope, the catecheses are also more often than not also intended for a wider audience in the universal Church.
Two special examples of this are the series of catecheses from St John Paul II that are now known under the title "The Theology of the Body"; and a series of catecheses begun by St John Paul II and concluded by Pope Benedict XVI on the psalms and canticles of Morning and Evening Prayer (I have them in a collection published by the Catholic Truth Society). These exemplify how the General Audience catechesis can have both its specific audience on a particular day in a particular place, and a permanent value for the wider life of the Church.
Pope Francis is currently part way through a series of catecheses on "The passion for evangelisation - the apostolic zeal of the believer". The texts are being posted each week at the website of the Holy See, in the section devoted to Audiences: Audiences 2023. At the time of posting, Pope Francis has reached the ninth catechesis in the series. I have dipped into each of them, and found in each of them something of worth: from the careful distinguishing of evangelisation from proselytism and the account of three steps (seeing, followed by movement and then towards a destination) in the calling of St Matthew in the catechesis of 11th January; through the insistence on 15th February that in evangelising there is "no staying without going and no going without staying"; to the account of witness as essential to evangelisation, drawn from St Paul VI's Evangelii Nuntiandi, in the audience of 22nd March.
Every one of us is called to respond to three fundamental questions, posed in this way by Paul VI: “Do you believe what you are proclaiming? Do you live what you believe? Do you preach what you live?”
Like the catecheses of St John Paul II and of Pope Benedict XVI, I think these too will have a permanent value for the life of the Church.