Consider the implications of this statement, "You are God's masterpiece, created anew in Christ Jesus to do the good works God prepared for you long ago." If I understand this right it means God has a vision for you. Therefore it makes sense if we are to discover our vision it must be within the things that matter to God.
The apostle Paul wrote to the Philippians saying, "God is working in you, giving you the desire and the power to do what pleases him." You know those desires you've been having to do something for God? They are not incidental thoughts, they are critical messages his Holy Spirit has been speaking to you.
Take a minute right now and revise the first draft of the vision you have for your marriage.
Here is my final draft:
I see my marriage being something that causes others to want what I have. Debbie and I are talking, laughing, spending time together, and she feels highly valued and has a great senses of self-worth. The two of us are working together to complete the calling we have on our lives. Our children are grown and each one is living to fulfill God's purposes for their lives.