MOOD COLORS ALL OUR THINKING.--Mood depends on the character of the aggregate of nerve currents entering the cortex, and changes as the character of the current varies. If the currents run on much the same from hour to hour, then our mood is correspondingly constant; if the currents are variable, our mood also will be variable. Not only is mood dependent on our sensations and thoughts for its quality, but it in turn colors our entire mental life. It serves as a background or setting whose hue is reflected over all our thinking. Let the mood be somber and dark, and all the world looks gloomy; on the other hand, let the mood be bright and cheerful, and the world puts on a smile. It is told of one of the early circuit riders among the New England ministry, that he made the following entries in his diary, thus well illustrating the point: "Wed. Eve. Arrived at the home of Bro. Brown late this evening, hungry and tired after a long day in the saddle. Had a bountiful supper of cold pork and beans, warm bread, bacon and eggs, coffee, and rich pastry. I go to rest feeling that my witness is clear; the future is bright; I feel called to a great and glorious work in this place. Bro. Brown's family are godly people." The next entry was as follows: "Thur. Morn. Awakened late this morning after a troubled night. I am very much depressed in soul; the way looks dark; far from feeling called to work among this people, I am beginning to doubt the safety of my own soul. I am afraid the desires of Bro. Brown and his family are set too much on carnal things." A dyspeptic is usually a pessimist, and an optimist always keeps a bright mood. MOOD INFLUENCES OUR JUDGMENTS AND DECISIONS.--The prattle of children may be grateful music to our ears when we are in one mood, and excruciatingly discordant noise when we are in another. What appeals to us as a good practical joke one day, may seem a piece of unwarranted impertinence on another. A proposition which looks entirely plausible under the sanguine mood induced by a persuasive orator, may appear wholly untenable a few hours later. Decisions which seemed warranted when we were in an angry mood, often appear unwise or unjust when we have become more calm. Motives which easily impel us to action when the world looks bright, fail to move us when the mood is somber. The feelings of impending peril and calamity which are an inevitable accompaniment of the "blues," are speedily dissipated when the sun breaks through the clouds and we are ourselves again.