A Balinese cremation is a big event and much of it has nothing to do with the physical aspects of the dead body - the spiritual is of much greater importance. Offerings provide symbolic pleasure to the deified ancestors and to the spirits that will be shortly released to God. Most importantly, however, the offerings will implore God to purify the spirit and return it to earth in an appropriately higher and purer form.
If there is a cremation during a daytrip we can stop so you can see.