Five stages of grief and loss

The stages are denial, anger, bargaining, depression, and acceptance.

Explanation:

Denial is the act of believing that "There is no way they are dead."

Anger is being angry that the person has passed away and angry with them because they "left you."

Bargaining is the belief that had you spent more time with the person, they would still be with you.

Depression is undeniable sadness and feeling like you are lost because you no longer have that person with you.

Finally, there is acceptance, where the subject affected will come to terms with the loss and begin to move forward slowly but surely.