The following is from the Jonathan Edwards work Religious Affections.
As from true divine love flow all Christian affections, so from a counterfeit love in like manner naturally flow other false affections. In both cases, love is the fountain, and the other affections are the streams. The various faculties, principles, and affections of the human nature, are as it were many channels from one fountain: if there be sweet water in the fountain, sweet water will from thence flow out into those various channels; but if the water in the fountain be poisonous, then poisonous streams will also flow out into all those channels. So that the channels and streams will be alike, corresponding one with another; but the great difference will lie in the nature of the water. Or, man’s nature may be compared to a tree, with many branches, coming from one root: if the sap in the root be good, there will also be good sap distributed throughout the branches, and the fruit that is brought forth will be good and wholesome; but if the sap in the root and stock be poisonous, so it will be in many branches (as in the other case), and the fruit will be deadly. The tree in both cases may be alike; there may be an exact resemblance in shape; but the difference is found only in eating the fruit. It is thus (in some measure at least) oftentimes between saints and hypocrites. There is sometimes a very great similitude between true and false experiences, in their appearance, and in what is expressed and related by the subjects of them: and the difference between them is much like the difference between the dreams of Pharaoh’s chief butler and baker; they seemed to be much alike, insomuch that when Joseph interpreted the chief butler’s dream, that he should be delivered from his imprisonment, and restored to the king’s favor, and his honorable office in the palace, the chief baker had raised hopes and expectations, and told his dream also; but he was woefully disappointed; and though his dream was so much like the happy and well boding dream of his companion, yet it was quite contrary in its issue.