The ceremonies performed after collection of bones/ashes and immersion in the sea,the Rites of Hinduism addresses three issues.
1.The Saisfying of the Pretha,the subtle body that remains after the body is turned to ashes and immersion in the sea.
2.The gradual process of making the Pretha getting disgusted with what is offered and moving/joining ancestors.
3.The process of purification of Home and the relatives from the impurities attached to Death and the attendant ceremonies.
As explained in the last article,the Subtle body,Pretha remains after life is snuffed out and the physical frame becomes Sava and is cremated.
The Pretha,without the medium of Body is unable to satisfy its urges.
(It may be noted that the Subtle body,when Life is present is called Sookshma Sarrera and is nourished by what we eat.It becomes Pretha only after Death).
There are two cravings in any Human Beings in terms of what they experience.
Daaha and Thaapa.
Daaha may lossely translated as Urge,Thirst,Obsessive Desire to enjoy.
Thaapa is anguish,disappointment,frustration in not getting what one desires.
These two are resolved,to a limited degree,when one is alive,has body.
Even if what one desires does not materialize,one has mind,when alive,to understand and compromise.
Pretha,with no body and mind can not do this.
However the urge,Daaha and Thaapa remain with it.
It is to be met if the,Pretha is to move forward and join the ancestors.
The death ceremonies of Hindus ,from Day one to thirteen address these.
On the day of death,at the cremation ground,after consigning the body to flames,the son of the deceased makes a rough sketch of human body with sand on the ground.
The Pretha is made to come into this,by chanting mantras requesting the,Pretha to come in and accept what is offered.
Water,Tender Coconut Water and Seasame seeds with Water are offered to the Pretha in the Human sketch formed on the ground.
After immersion of ashes in the sea,the Pretha is made to descend in a small stone placed in a corner at the home of the deceased.
A small area is selected inside the house,where the deceased lived,roughly one foot by one foot,the area is paved with sand and a thatch of Coconut leaf is placed as the roof.
The son offers water,water and Seasameseeds to the Pretha in the stone daily.
Water is offered to quench Daaha and meet with desires of the Pretha .
Sea same seeds with water is offered to satisfy Thaapa, anguish.
The water and sea same seeds with water is increased every day till the tenth day.
The Pretha is believed to be hovering around the house till it is sent to join Pitrus, ancestors on the twelfth Day.