The aurora borealis, also called the northern lights, are natural light displays in the sky, usually observed at night in the northern hemisphere. They are more likely to be seen closer to the North Magnetic Pole. They typically occur in the ionosphere and most often near the equinoxes.
Auroras are caused by the bombardment of solar electrons on oxygen and nitrogen atoms.
" in ancient times they used basil to embalm the dead "
Basil (Ocimum basilicum) has long been used as an embalming and preserving herb, and is found in mummies of ancient Egypt. Perhaps because of its embalming role, basil was also a symbol of mourning in Greece where it was known as basilikon phuton (magnificent, royal or kingly herb). In Europe, basil is placed in the hands of the dead to ensure a safe journey. In India, it is placed in the mouth of the dying to ensure they reach God.