Do you think of your car as a commodity? Or as part of your identity? These positions represent two extremes, but most people lean one way or the other. If you think of your car merely in functional terms perhaps you feel a stronger attachment to what you eat or what you wear.
Yet according to my word these are the things that the gentiles seek after. Your Father knows that you have need of them and he will provide them, but they are not substantial enough to use as the basis for your identity. I made you in my image. Only I can provide a basis for the identity of my child, my disciple, my friend. Seek first the Kingdom of God.