For protecting the body It's an attempt to care for it even after death. Caskets, be they of metal or wood, are sealed so that they protect the body. The sealing will keep the elements, air, and moisture from getting inside the coffin.
Once a body is placed in a sealed casket, the gases from decomposing cannot escape anymore. As the pressure increases, the casket becomes like an overblown balloon. However, it's not going to explode like one. But it can spill out unpleasant fluids and gasses inside the casket.
Although it's uncommon, caskets can be reopened after they've been sealed. In most cases, a funeral director can simply use a screwdriver, crowbar, or hexagonal key to break the seal and access the body inside.
It's not necessary to nail down the lid but it is advisable to do so. Decades ago people still believed that someone could be buried alive (hence the little bells with a rope) but not today. The preparations made on the corpses make sure that won't happen. So… that is not the reason…
A rather large overstuffed pillow is included in the interior package of a finished casket. This pillow helps to hold the decedent in an inclined position. This position helps present a naturally comforting presentation to the survivors.
Coffins are not watertight so when the grave fills with water it also fills the coffin, which decomposes and rots the bodies faster. In my opinion this is where the water mixes with the body and embalming fluids," he explained.
(Note: If you're buried alive and breathing normally, you're likely to die from suffocation. A person can live on the air in a coffin for a little over five hours, tops. If you start hyperventilating, panicked that you've been buried alive, the oxygen will likely run out sooner.)
Over time, coffins underground will decompose and eventually collapse. Covering the face before closing the casket adds an extra layer of protection and dignity for the deceased's face and can act as a symbolic final goodbye.
Open Casket Funeral Etiquette
While some people find comfort in seeing their loved ones as they remember them, it may also be uncomfortable to others. If they have an open casket viewing, make sure you follow proper funeral etiquette: DON'T touch the body under any circumstances.
What's really returned to you is the person's skeleton. Once you burn off all the water, soft tissue, organs, skin, hair, cremation container/casket, etc., what you're left with is bone. When complete, the bones are allowed to cool to a temperature that they can be handled and are placed into a processing machine.
One of the wildest innovations is “living funerals.” You can attend a dry run of your own funeral, complete with casket, mourners, funeral procession, etc. You can witness the lavish proceedings without having an “out-of-body” experience, just an “out-of-disposable-income” experience.
In parts of Germany and in Belgium, it was long customary to cover mirrors with a white cloth because it was thought that if a person saw his or her image in a mirror after a death in the household, that person would die shortly.
Many crematoriums offer funeral robes or gowns
Most crematoriums provide these. You might ask for a funeral gown if you're not sure what to dress the person who's died in. At a direct cremation, the body will enter the cremation chamber in the clothes or hospital gown they were wearing.
Undergarments
These are put on first to protect the outer clothing and provide modesty for the deceased.
We don't remove them. You can use what is called an eye cap to put over the flattened eyeball to recreate the natural curvature of the eye. You can also inject tissue builder directly into the eyeball and fill it up. And sometimes, the embalming fluid will fill the eye to normal size.
So why do Funeral Directors bow at coffins? Respect. The aim when working with any family is to show their loved one as much dignity and respect as possible. Even though this person may not be walking on this earth any longer does not mean that they deserve any less respect.
Because, after 100 years, the last of your bones will have collapsed into dust. In fact, only the teeth will be left, given that they are the most durable part of your body.
A rubber gasket will go all the way around the edge of the lid of the casket. Once the lid is closed, a sealing key (found on the foot of the coffin) will be turned, locking the lid safely in place. Therefore, the rubber gasket will create an air-tight seal.
After a few weeks, nails and teeth will fall out. After 1 month, the liquefaction process commences. During this stage the body loses the most mass. The muscles, organs and skin are liquefied, with the cadaver's bones, cartilage and hair remaining at the end of this process.
As mentioned, most of the caskets are not airtight, and advanced decomposition will lead to unpleasant smells even in a closed service. However, it is especially important for funerals with open caskets, as all measures must be taken to ensure that loved ones can say their farewells before decomposition begins.
Wooden coffins (or caskets) decompose, and often the weight of earth on top of the coffin, or the passage of heavy cemetery maintenance equipment over it, can cause the casket to collapse and the soil above it to settle.
Medical schools in the early 1800s bought cadavers for anatomical study and dissection, and some people supplied the demand by digging up fresh corpses. Gravesites reaching six feet helped prevent farmers from accidentally plowing up bodies.
When the window is ajar. Opening the window after someone dies is a tradition that hasn't died out. All over the world many nurses and families abide by this practice. It is said the souls of ancestors gather at the time of death of a family member and, regardless, this aids the soul transitioning to the next world.
Someone has died, and stopping the clocks in the house of the deceased, silencing them, is an old tradition, similar to closing the blinds or curtains and covering the mirrors. The clock would be set going again after the funeral. Some people believe stopping the clock was to mark the exact time the loved one had died.