Perhaps some ideas that have worked for me in similar situations
We all need , we all actually crave structure in life especially when we have an incomprehensible mystery called “dead”.
There is one appointment we will all keep and we just don’t know when ;and when that doe s happen to someone close to us as much as we know it will happen and expect it ; its still is a shock and something within us is lost , ripped. A link in a chain is gone and we need to find a way to repair that link.
The deceased plays the star role ,the central part and the family with the community are the supporting cast and the star is gone and we are bewildered and lost..
At this point specific rules and guideline’s take over. Our traditions and religion has very specific steps to help us heal this breach , and reconnect the links or our relationship with society.
We sit Shiva in a low chair(In Talmudic times on the floor) because we are closer to the ground where the deceased lies ; w e are still very much connected to the deceased and cant believe they are gone ; the community joins us for minyan in the home of the deceased easing the way for the deceased to leave its body and for us to know that this is part of living.. Shiva is followed by sholoshim and 11 months of saying kaddish- all specific steps to ease our road back.
We don’t mention Gods name in kaddish as we are all somewhat angry at god- why our beloved was taken from us yet we recognize the might and majesty that kaddish is; its powerful.
Right after the funeral there is a tradition in mnay communities to form an aisle , kaddoish is said and sentence that usually reads “this- kable tzaloson “ which translates from Aramic “ accept our prayers is omitted at this special kaddish a s it is omitted at kaddish Da’rabban all during the 11 months of kaddish as we can't ask God at this point to accept-we don't want to pray to a god that took our parents or child or beloved . Our Rabbis in their wisdom understood this and the most pious of Jews omits this all year round.
We never forget the deceased and we set aside Yizkor and Yahrzeit so the memory is never totally gone. The link is never gone and we are all part of a long chain.
There is much more to say regarding the cultural -anthropological aspects of dead and dying
Hope this helps a bit
isaac Pollak