The Sensitive and Rational Corporeal Figurative Motions, are the cause of infinite varieties: for, though Repetitions make no varieties; yet, every altered action is a variety: Also, different Actions, make different Effects; opposite Actions, opposite Effects; not only of the actions of the several Self-moving Parts, or Corporeal Motions, but of the same Parts: As for example, The same Parts, or Corporeal Motions, may move from that, Man names _Life_, to that which Man names _Death_; or, from Health to Sickness, from Ease to Pain, from Memory to Forgetfulness, from Forgetfulness to Remembrance, from Love to Hate, from Grief to Joy, from Irregularity to Regularity; or, from Regularity to Irregularity, and the like; and from one Perception to another: for, though all actions are perceptive, yet there are several kinds, several sorts, and several particular perceptions: But, amongst the several Corporeal Motions of Animal, or Human kind, there are the opposite Motions of what we name _Waking_, and _Sleeping_; the difference is, That Waking-actions are, most commonly, actions of Imitation, especially of the Sensitive Parts; and are more the Exterior, than the Interior actions of a Human Creature. But, the actions of Sleep, are the alterations of the Exterior Corporeal Motions, moving more interiorly, as it were inwardly, and voluntarily: As for example, The Optick Corporeal Motions, in Waking-actions, work, or move, according to the outward Object: but, in Sleeping-actions, they move by rote, or without Examples; also, as I said, they move, as it were, inwardly; like as a Man should turn himself inward, or outward, of a door, without removing from the door, or out of the place he stood in. CHAP. II. Of SLEEPING. Although the Rational and Sensitive Corporeal Motions, can never be tired, or weary of moving or acting, by reason it is their nature to be a perpetual Corporeal Motion; yet they may be weary, or tired with particular actions. Also, it is easier and more delightful, to move by Rote, than to take Copies, or Patterns; which is the reason that Sleep is easie and gentle, if the Corporeal Motions be regular; but if they be irregular, Sleep is perturbed. But this is to be noted, That the Corporeal Motions delight in varieties so well, that, many times, many and various Objects will cause the Sensitive and Rational Corporeal Motions in a Man, to retard their actions of Sleep; and, oft-times, want of variety of Forrein or outward Objects, will occasion the action of Sleep; or else Musing and Contemplating actions. Also, it is to be noted, That if some Parts of the Body, or Mind, be distempered with Irregularities, it occasions such disturbances to the Whole, as hinders that repose; but if the Regular Parts endeavour not to be disturbed with the Irregular; and the Irregulars do disturb the Regular; then it occasions that which Man names, _Half-sleeps_, or _Slumbers_, or _Drowsiness_. And if the Regular Corporeal Motions get