questions regarding ceremonies after death

From the Bhakti List Archives

• April 14, 1999


I have a few basic questions on the ceremonies performed after death
in our sampradayam.

The rituals performed after death are done as mentioned in the vedas.
what  were the additions and modifications introduced for the
followers of Sri Sampradaya by our poorvacharyas?( apart from the
Subasreekaram-recital of thiruvaimozhi,ramanuja nootrandadhi,sattumurai
and recitations expressing the conception of reaching perumal
thiruvadi according to sri sampradayam and also perhaps the Srimoorthy
danam after chavandi.)  

with my limited understanding as i know the 10th day ceremony marks
the start of the process when the soul in the preta rupam begins
the journey of joining the pitrus .In the above context what is the 
significance of the "otthan", "chavandi" and the "subasreekaram" 
ceremonies.what is being accomplished in these ceremonies?

what is the significance /purpose of the stone hidden in the grahadwara
kundam and the tadagatheerakundam which is thrown away on the 10th
day.

thanks

adiyen
Venkat S Iyengar