When we experience a major loss, grief is the normal and natural way our mind and body react. Everyone grieves differently. And at the same time there are common patterns people tend to share.For example, someone experiencing grief usually moves through a series of emotional stages, such as shock, numbness, guilt, anger and denial. And physical responses are typical also. They can include: sleeplessness, inability to eat or concentrate, lack of energy, and lack of interest in activities previously enjoyed.