I would like to use my youth for the rest of my life to only give you ten miles of peach blossoms; what does it mean?

I am willing to use my youth to give you only ten miles of peach blossoms, which means that I am willing to use my happiness in this life in exchange for your wealth and happiness in this life. I would like to use my youth to give you ten miles of peach blossoms. If I exchange your youthful beauty for these ten miles of peach blossoms, I would spend all my three lives just to spend my whole life with you.