There are articles of life and death. I believe in the natural state of evolution and death occurs as a process. In Tao philosophy, it is known that the one is all and everything is created by the one. Hence in the first chapter of Book of Changes, we see WuJi “emptiness” creates TaiJi “balance of yin and yang”.
When our human life span completes, the force moves on to the next state of being, a cycle of cosmic motion.
Cultural Beliefs
In South East Asia, the following steps are covered upon a person’s death.

• A death certificate is issued by the doctor.
• The body is collected from the hospital to the mortuary
• Casket collects the body from the mortuary (sometimes this is done on the same day of death)
• The body is washed and preserved (painted in some cases to make them look alive)
• In the first 3 to 5 days (depending on length if you can afford), hell notes is burnt for offerings to the hell guards. (or angels). They will escort the soul to judgement.
• On the 7th day, the body is cremated. (buried)
• On the 1st, 3rd, 5th, 7th day there will be gatherings of relatives to offer incense to the deceased. This day, hell notes and offerings are continued to be burned.
• On the 49th day, (normally called Qi Qi, meaning 7 x 7), the final prayer is due and the deceased is sent off.

Observations
However in certain times, there is something odd and it seems like the occurrence of appearing of oddly massive butterflies or moths happens when someone related to you has just passed away (or on). Perhaps its true that death is only an occurrence and part of living on and transformation of 1 matter to another.