In the early going, before there is a product or service, all you are doing is looking at a relationship between people, and maybe the market at large.
The goal is to answer one question: can we create something that is useful, interesting, meaningful, inspirational, valuable, and/or helpful to a specific person?
If you can, and they share with you why it has meaning or value, then you can build a community around it.
This is what every "visionary" pays lip service to, but experienced founders know: an early stage company or project is just an exercise in building community.
If you focus on growth alone, you may occasionally stumble across value, but you're likely to miss many of the non-transactional reasons people relate to a company or organization - why they are loyal and choose to stick with something, or why they choose to try something new.
Your job is to keep a list of 10, 20, 50, or even hundreds of priorities that reflect the values of your community...and constantly re-prioritize the list based on what is possible, and what can be imagined.
If the list is all imagination, you'll miss the opportunity to deliver meaningful value. If it's all value here and now, you'll miss the chance to build a community with vision.