Happy would it be, if such views and practices more generally prevailed. But it is a painful truth that multitudes of persons, and some even of those who claim to be the Savior's followers, pollute themselves by taking food, not for the sake of the food and in the fulfillment of the intentions of nature, but for the sake of the pleasure which it gives; making the pleasure the ultimate and oftentimes the sole object. In other words, they eat and drink for their lust's sake. They do not eat and drink, because it is necessary to support nature; an important object, which, when properly kept in view, has a tendency to limit the quality and quantity of the articles taken, but in order that they may gratify their selfish propensities. Such are the persons, that are properly denominated impure; and they feel themselves to be so. The superabundance of the flesh, nourished by meats and drinks stimulating in their nature, and inordinate in quantity, seems to spread a coat of its dark and unseemly accretion over the mind itself. The amount of impurity, which results from this source, is immense; and will abundantly account for the lamentations of many persons over their spiritual leanness.
— The Interior or Hidden Life (1844) Part 2, Chapter 3.