Emotionally, grief is a mixture of raw feelings such as sorrow, anguish, anger, regret, longing, fear, and deprivation. Grief may be experienced physically as exhaustion, emptiness, tension, sleeplessness, or loss of appetite.
What is this true meditation? It is to make everything: coughing, swallowing, waving the arms, motion, stillness, words, action, the evil and the good, prosperity and shame, gain and loss, right and wrong, into one single koan.