This verse carries an idea of pregnancy… Our hearts are pregnant with hope. Fully expectant.
And this hope doesn't disappoint. New life will come. The journey will have difficult moments of fears, discomfort, and distress. But the journey will also have cherished moments of calm, intimacy, and wonder.
No matter the circumstances, we are full… because "God's love for us" has been "poured out" in our hearts. God has poured love out… into us. And my guess is that God's love is more than enough to fill us… forever.
And not only do we have God's love poured into our hearts, but we have God's Spirit given to us. We don't walk alone through the pregnancy… we don't go through the pangs by ourselves. The Holy Spirit is present with us through it all… taking those precious wobbling walks with us.
So, we rejoice in our sufferings, knowing that suffering produces endurance, and endurance produces character, and character produces hope (Romans 5:3-5). The present experiences work a growth process in us… producing wide-eyed, intimate new life.