Imagination is strong in a man when that particular function of the brain which enables him to observe is roused to activity without any necessary excitement of the sense. Accordingly, we find that imagination is active just in proportion as our sense are not excited by external objects. A long period of solitude, whether in prison or in a sick room; quiet, twilight, darkness-these are the things that promote its activity; and under their influence it comes into play of itself.
In youth it is the outward aspect of things that most engages us; while in age, thought or reflection is the predominating qualityof the mind. Hence, youth is the time for poetry, and age is more inclined to philosophy. In practical affairs it is the same: a man shapes his resolutions in youth more by the impression that the outward world makes upon him; whereas, when he is old, it is thought that determines his actions.
Just as a stream flows smoothly on as long as it encounters no obstruction, so the nature of man and animal is such that we never really notice or become conscious of what is agreeable to our will; if we are to notice something, our will has to have been thwarted, has to have experienced a shock of some kind.
To be shocked at how deeply rejection hurts is to ignore what acceptance involves. We must never allow our suffering to be compounded by suggestions that there is something odd in suffering so deeply. There would be something amiss if we didn't.
Whether we are in a pleasant or a painful state depends, finally, upon the kind of matter that pervades and engrosses our consciousness and what we compare it to - better and we envious and sad, worse and we feel grateful and happy.
We should be surprised that a matter that generally plays such an important part in the life of man has hitherto been almost entirely disregarded by philosophers, and lies before us as raw and untreated material.
If a relationship is perfectly natural there will be a complete fusion of the happiness of both of you-owing to fellow-feeling and various other laws which govern our natures, this is, quite simply, the greatest happiness that can exist.