A person must learn to be alone in solitude, to listen in one's heart to the wordless speech of the Spirit, and to discover the truth bout oneself and God. Then their word to others will be a word of power, because it is a word of silence.
There are mountaintop experiences for some, and thin places for very many. But underlying them—and making them possible—are the faithful moments, the faithful hours, and the faithful days which make up a lifetime of actively seeking to allow God's love to live in us and through us.