We need to be that proactive in our own lives with sin as well. With the Spirit’s leading, we can root things out. Face problems head on. We can do the right things and avoid the harmful things. Take our daily spiritual vitamins. Cook home meals instead of always choosing convenience.
Sometimes, we have to ask God to teach us what the harmful things are so we know to avoid them. We have to ask Him to show us those first hints of declining spiritual health.