The immense force and domination of Fear in the first self-conscious stages of the human mind is a thing which can hardly be exaggerated, and which is even difficult for some of us moderns to realize. But naturally as soon as Man began to think about himself--a frail phantom and waif in the midst of tremendous forces of whose nature and mode of operation he was entirely ignorant--he was BESET with terrors; dangers loomed upon him on all sides. Even to-day it is noticed by doctors that one of the chief obstacles to the cure of illness among some black or native races is sheer superstitious terror; and Thanatomania is the recognized word for a state of mind ("obsession of death") which will often cause a savage to perish from a mere scratch hardly to be called a wound. The natural defence against this state of mind was the creation of an enormous number of taboos--such as we find among all races and on every conceivable subject--and these taboos constituted practically a great body of warnings which regulated the lives and thoughts of the community, and ultimately, after they had been weeded out and to some degree simplified, hardened down into very stringent Customs and Laws. Such taboos naturally in the beginning tended to include the avoidance not only of acts which might reasonably be considered dangerous, like touching a corpse, but also things much more remote and fanciful in their relation to danger, like merely looking at a mother-in-law, or passing a lightning-struck tree; and (what is especially to be noticed) they tended to include acts which offered any special PLEASURE or temptation--like sex or marriage or the enjoyment of a meal. Taboos surrounded these things too, and the psychological connection is easy to divine: but I shall deal with this general subject later.