_Time a relative Idea._--Looking at time merely as an idea or conception of our own minds, it is simply the perception of _relation_; the relation of passing events to each other, the relation of our various modes and states of being, our thoughts, feelings, etc., to each other, as successive, or to external objects and events, as also successive; the whereabouts, in a word, of one's self, one's present consciousness, in relation to what passes, or has passed, within or without, the relation of the present me to the former me, as regards both the succession of internal or external events. Hence the mind has only to withdraw itself completely from the consciousness of its former states and of events passing without, and it _loses_ altogether its idea of time. _Thus in Sleep._--This we find to be the case in sleep. The thinking goes on; the idea of present self is kept up, but not of self in relation to the objects that are really about us, or to the actual part of its own existence. Whatever relation seems to exist, is imaginary and untrue. We no longer know where we are, nor exactly who we are. The avenues of communication with the external world are shut up, the eye, the ear, etc., are inactive, the spirit withdraws from the outward into itself, as far as this is possible, while the connection of body and mind still continues; its relations to former things and to present things are forgotten and unknown. What is the consequence? We lose all idea of _time_; the moment of falling asleep and of our beginning to awake, if the sleep have been sound, is apparently one and the same moment. The first effect of returning consciousness is to resume the broken thread of time, to find your place again in the series of things, whether it is morning or night, what morning or what night it is; to find yourself, in fact. You had _forgotten yourself_, to use a familiar phrase exactly descriptive of the present case. What of yourself had you forgotten? Simply your _relation_ to the order and succession of things without, and of thoughts and feelings within--your place in the series. In sleep, your existence, so far as it is an object of consciousness at all, is simply that of each passing moment by itself.