Grieving is a perfectly normal, and healthy response; to loss in ones life. This is commonly loss of a loved one; but it can also be loss of something else (eg. your home, health or job).
Some types of grief are not as normal as others though; and understanding the type of grief is the first step toward getting past it.
Some people have a natural tendency to be attentive listeners; and others need to work hard to be good at listening.
Listening skills are however a critical part of communication. If you don't hear and understand what someone says, you are never going to properly communicate with them.
One of the biggest challenge for any business owner or manager is to not only get appropriate applicants for a job; but to decide which of those applicants is the best one to assign that job to.
This task can be made easier if the manager has a better understanding of personality and occupational psychology.
It can be made even easier with the application of some psychological testing.