If you asked a group of random strangers what it meant to be "healthy," I'm sure you would be offered a variety of suggestions. My guess is that many of the answers you received would primarily relate to physical health. Healthy bodies are certainly important, but there's a deeper level of health, with longer lasting results, that we should prioritize first.
As followers of Christ, we're called and empowered to be spiritually healthy. So what does that look like, and how can we obtain the spiritual health and spiritual vibrancy many of us are craving?