In many case there will be alternative (replacement to some) even if it concern beings. For a man to miss a lady is either a vitual sense of loss more than physical loss. Even in the case of death of love ones, the 'missing' pain will be there for a given period of time which will evntually phase itself out as life goes on and new events in life tides in. It can be a psycho illness to some who are displaced, weak in hearts and mind. The universal answer is 'pray'