I have been grappling recently with what a correct level of living is. That is, not too rich and not too poor as prescribed in Proverbs 30:8-9.
This from Desiring God today gave a pretty good definition.
Augustine offers a standard in “the needs of this life,” which is
not just what is necessary for bare subsistence, but also what is necessary for living a life “becoming” or appropriate to human beings. The point is not to live on crusts of bread with bare walls and threadbare clothes. The point is that a fully human life is lived in a way free from being enslaved to our stuff. Our possessions are meant to serve our needs and our humanness, rather than our lives being centered around service to our possessions and our desires for them. (Glittering Vices, 106)