If you prayed as a Christian in the name of Jesus, completely confident that God hears and accepts your prayer, that’s a fruit of the Reformation.
Kevin DeYoung interacts with the writings of Martin Luther:
[In addition to other spiritual truths, the Reformation] was also about confidence. Not self-confidence, but confidence that God is for us not against us, confidence that we can go to heaven without a sentence in purgatory first, confidence that though we cannot rest in our works, we can rest in Christ’s.
Consider, for example, this powerful reflection from Luther on the confidence we should have in prayer.
…one of the things we must never forget to say is that the Reformation mercifully allowed fearful sinners to have a new kind of relationship with God. The Reformation reminded God’s people that they can have direct access to God through Christ. It re-centered the church on the lavish, scandalous good news of the cross. And it reassured them (and us) that God is on the side of the justified saint, even though they were still struggling sinners.
Read Luther’s words at DeYoung’s blog.