"The Holy Spirit is not only present in other religions through authentic expressions of prayer. “The Spirit’s presence and activity”, as I wrote in the Encyclical Letter Redemptoris missio, “affect not only individuals but also society and history, peoples, cultures and religions” (n. 28).
Normally, “it will be in the sincere practice of what is good in their own religious traditions and by following the dictates of their own conscience that the members of other religions respond positively to God’s invitation and receive salvation in Jesus Christ, even while they do not recognize or acknowledge him as their Saviour (cf. Ad gentes, nn. 3, 9, 11)” (Pontifical Council for Interreligious Dialogue – Congregation for the Evangelization of Peoples, Instruction Dialogue and Proclamation, 19 May 1991, n. 29; L’Osservatore Romano English edition, 1 July 1991, p. III).
Indeed, as the Second Vatican Council teaches, “since Christ died for all, and since all men are in fact called to one and the same destiny, which is divine, we must hold that the Holy Spirit offers to all the possibility of coming into contact, in a way known to God, with the paschal mystery” (Gaudium et spes, n. 22)."
John Paul II, General Audience