Write a musical arrangement for a song performed by a duo of acoustic guitar and piano. Guitar: fingerstyle, meditative, with percussive elements and ornamentation. The sound should be warm and resonant, conveying a sense of “telling a story”. Piano: delicate accompaniment, soft arpeggios, light embellishments in the upper registers. In the choruses, use a denser texture; in the finale, include solemn chords. Overall mood: a journey from foggy uncertainty to bright enlightenment. The music should support the poetic imagery of a road, a quest, and the discovery of love.