A filter has the task of separating substances. It allows certain substances to pass through, while retaining others. This is clearly illustrated with coffee: before the brewing process, the coffee powder is one component, all in one. Then hot water is poured over the powder in the filter and a separation process takes place: the powder and certain substances are retained, while the caffeine and other water-soluble substances pass through the filter. Quite selfish really. You only want something specific, the rest should be retained and then thrown away. Or is it health-conscious and precautionary because the filter serves to prevent everything from being absorbed? I think that a filter is a positive thing. Where it is able to retain bad things, it protects against contamination. This applies, for example, to our thoughts, information intake, etc. A good filter that is maintained helps us to utilise our own energy efficiently and in a targeted manner and therefore to live a healthier life.
I wish you an extraordinary day!