Swami Mukundananda
What should I do if my grief for the departed does not end?
Overcome lingering grief with knowledge
In Hindu traditions there is a grieving period of twelve days, or nearly thirteen. If grieving continues after that, decide it is your own weakness and attachment. Decide that your human form is too precious to waste in grief.
In our Hindu traditions there is a period of grieving of twelve days, nearly the thirteenth day. Until then people suspend all activities and sit in grief.