Mourning is, in the simplest sense, synonymous with grief over the death of someone. The word is also used to describe a cultural complex of behaviours in which the bereaved participate or are expected to participate. Customs vary between different cultures and evolve over time, though many core behaviors remain constant.
Wearing black clothes is one practice followed in many countries, though other forms of dress are also seen. Those most affected by the loss of a loved one often observe a period of grieving, marked by withdrawal from social events and quiet, respectful behavior. People may also follow certain religious traditions for such occasions.
Mourning may also apply to the death of, or anniversary of the death of, an important individual like a local leader, monarch, religious figure, etc. State mourning may occur on such an occasion. In recent years some traditions have given way to less strict practices, though many customs and traditions continue to be followed.
An angel (from the Greek ἄγγελος ángelos, "messenger") is a supernatural being or spirit, often depicted in humanoid form with feathered wings on their backs and halos around their heads, found in various religions and mythologies.
The theological study of angels is known as "angelology". In Zoroastrianism and Abrahamic religions they are often depicted as benevolent celestial beings who act as intermediaries between Heaven and Earth, or as guardian spirits or a guiding influence.
The term "angel" has also been expanded to various notions of spirits found in many other religious traditions. Other roles of angels include protecting and guiding human beings, and carrying out God's tasks.
In art, angels are often depicted with bird-like wings on their back, a halo, robes and various forms of glowing light.