The Universal Flame

3. Impossible to subdue or defeat.
5. Intruding on a person's territory or rights gradually.
8. A short period of rest or relief from something difficult or unpleasant.
10. The time or date (twice each year) at which the sun reaches its maximum or minimum declination.
11. A detailed branch of biology and history that deals with the structure of societies and human culture.
12. Physical or mental strength that allows you to bounce back from stress or hardship.
13. An oil lamp used in the Indian subcontinent, notably during Diwali.
14. A person or thing that announces or signals the approach of another.
17. An event, action, or object that clearly shows or embodies something abstract.
18. A feeling deep in the internal organs; instinctive rather than intellectual.
19. Log A large piece of wood, traditionally burned in the hearth as part of Christmas traditions.

1. Existing at or from the beginning of time; ancient and basic.
2. Physical cycles (roughly 24 hours) in physiological processes of living beings.
4. Soldiers or guards whose job is to stand and keep watch.
6. To set fire to; to arouse or inspire.
7. The floor of a fireplace; used as a symbol of the home.
9. Lasting for a very short time; fleeting.
11. Relating to the distant past, especially the period before the Middle Ages.
15. Perceptible by touch; clear and definite; real.
16. A nine-branched candelabrum used during the Jewish festival of Hanukkah.