There are actually more than two worlds. Horror is but a glimpse of part. You see, while you experience seasons your species is sensitive to, there are other creatures which wake up to the winter. Their senses do not understand horror but genetic drive to continue in a pattern sustainable to their species. Our species is so precariously co-dependent, we consider any other life changing events such as the weather as weaknesses to our condition. Horror is a word for the innocent. Vegetation life on earth is not innocent.