The biggest issue (for me), it seems with death, is what to make of it. For him, perhaps, nothing is lost. Being dead, he no longer has ambition, anything. His existence ceases. It's a bleak way of looking at life, yes. But as one has said before, you can't mourn those who die without mourning those unborn. I'm not sure, but the only thing you can mourn, is that that has been wrenched from you. The misfortune caused by a death, and the effects upon the living of the death. In the end, if you have any obligation to a death, visit the friends, attend the funeral, to whatever extend you feel responsible- respect those living and console them. That's what funerals are for, the living- not the dead.