The term mourning refers to an outward expression of loss after a death.

Sometimes mourning and Grief are used interchangeably, but they are different concepts.

Grief refers to internal thoughts and feelings after loss, where as mourning refers to the cultural and personal customs, rituals, and behaviors that a person engages in after experiencing loss.

It is a way of expressing and processing grief, and can take many forms, such as wearing black clothing, lighting candles, or the rituals and customs that accompany loss like attending religious services, Funerals or Memorial Services.