I know I've pointed out that IMHO EN is a very evangelical document (pr Apostolic Exhortation to be precise), but after reading §26 I have to reiterate the point.
§25 starts by acknowledging that there are secondary points to evangelism which are conditioned by time, place, and culture--all things that have been mentioned before in the encyclical. But then it goes on in §26 to delineate the factors that "cannot be modified or ignored."
We find the following, which is what caught my attention:
But it is fully evangelizing in manifesting the fact that for man the Creator is not an anonymous and remote power; He is the Father: "...that we should be called children of God; and so we are."
Can we say 'personal relationship'? That phrase seems to come quite easily to mind after reading this. Or we can also point out that favorite and venerable evangelistic tool: the God-shaped whole in our hearts, which is also mentioned:
Perhaps this attestation of God will be for many people the unknown God whom they adore without giving Him a name, or whom they seek by a secret call of the heart when they experience the emptiness of all idols.