1- To be conscious of shivering in dreams can represent either a fear of conflict, or of coldness of emotion. There is also a shiver of excitement. We may, in waking life, be reaching a conclusion or coming to a peak of experience.
2- When we shiver in a dream we may be getting near to releasing unconscious behaviour.
3- The ecstatic experience results in a shiver as the energy on the physical level builds into an almost orgiastic expericncc. This can sometimes he experienced in dreams.... Ten Thousand Dream Dictionary