No fact is more instructive, in this respect, than one, which more than once we have had occasion to make use of; the association of the ideas of distance, extension, and figure, with the sensations of sight. I open my eyes; I see the tables, and chairs, the floor, the door, the walls of my room, and the books ranged upon the walls; some of these things at one distance, some at another; some of one shape and size, some of another. My belief is, that I see all those particulars. Yet the fact is, that I see nothing but certain modifications of light;[104] and that all my belief of seeing the distance, the size, and figure of those several objects, is nothing but the close and inseparable association of the ideas of other senses. There is no room for even a surmise that there is any thing in this case but the immediate blending of the ideas of one sense with the sensations of another, derived from the constant concomitance of the sensations themselves.

[104] More guardedly—’I am affected by certain modifications of light.’ The word ‘see’ carries with it too much meaning for the case put. There is also the omission, [previously] remarked on, to take into account the mental elements due to the movements of the eye—visible forms, magnitudes, and movements.—B.

The case of hearing is perfectly analogous, though 370 not so exact. I am in the dark; I hear the voice of one man, and say he is behind me; of another, and say he is before me; of another, he is on my right hand; another, on my left. I hear the sound of a carriage, and say, it is at one distance; the sound of a trumpet, and say, it is at another. In these cases I believe, not only that I hear a sound, but the sound of a man’s voice, the sound of a carriage, the sound of a trumpet. Yet no one imagines that my belief is any thing, in these cases, but the close association of the sounds with the ideas of the objects. I believe, not only that I hear the sound of a man’s voice, but that I hear it behind me, or before me; on my right hand, or on my left; at this distance, or at that. The indisputable fact, in the mean time, is, that I hear only a modification of sound, and that the position and distance, which I believe I hear, are nothing but ideas of other senses, closely associated with those modifications of sound. That this state of consciousness, the result of an immediate irresistible association, is identical with the state which we name belief, is proved by a very remarkable experiment, the deception produced by ventriloquism. A man acquires the art of forming that peculiar modification of sound, which would come from this or that position, different from the position he is in; in other words, the sound which is associated, not with the idea of the position he is in, but that of another position. The sound is heard; the association takes place; we cannot help believing that the sound proceeds from a certain place, though we know, that is, immediately recognize, that it proceeds from another.

We must not be afraid of tediousness, while we 371 adduce instances in superabundance, to prove that in dissoluble association (in one remarkable class of its cases, which, on account of their vast importance, it is found expedient to distinguish by a particular name) is that state of consciousness, to which we have given the name of BELIEF.

We are all of us familiar with that particular feeling, which is produced, when we have turned ourselves round with velocity several times. We BELIEVE that the world is turning round.

The sound of bells, opposed by the wind, appears to be farther off. A person speaking through a trumpet appears to be nearer. Our experience is, that sounds decrease by distance. A sound is decreased by opposition of the wind; the idea of distance is associated; and the association being inseparable, it is belief. A sound is increased by issuing from a trumpet, the idea of proximity is associated, and the association being indissoluble, it is belief.

In passing, on board of ship, another ship at sea, we believe that she has all the motion, we none: though we may be sailing rapidly before the wind, she making hardly any progress against it.

When we have been making a journey in a stage coach, or a voyage in a ship, we believe, for some time after leaving the vehicle, that still we are feeling its motion; more especially just as we are falling asleep.

Nobody doubts, that these, and similar cases of belief, which are very numerous, are all to be resolved into pure association. What the associations are, we leave to be traced by the learner; so many repetitions of the same process, though a useful exercise to him, would be very tedious here.

372 The Belief which takes place in Dreaming merits great attention in this part of our inquiry. No belief is stronger than that which we experience in dreaming. Our belief of some of the frightful objects, which occur to us, is such, as to extort from us loud cries; and to throw us into such tremors and bodily agitations, as the greatest real dangers would fail in producing. Not less intense is our belief in the pleasurable objects which occur to us in dreams; nor are the agitations which they produce in our bodies much less surprising. Yet there is hardly any difference of opinion about the real nature of the phenomena which occur in dreaming. That our dreams are mere currents of ideas, following one another by association; not controlled, as in our waking hours, by sensations and will; is the substance of every theory of dreaming. The belief, therefore, which occurs in dreaming, is merely a case of association; and hence it follows that nothing more is necessary to account for Belief.