Why does the Ancient Mariner stop and tell his tale to the Wedding Guest?

the ancient mariner stops wedding guest to tell his tale of sin and suffering .when he meets the wedding guest , he becomes desperate to tell his story . narrating it over and over again has a humbling effect on him . confession makes him feels lighter and it is a step towards repentance.......hence it provide the much needed relief to the ancient mariner..

bcezz  a  hermit  hd  quoth  once  to  the mariener  tht  the  more  u  confess  urr  guilt  wid  other  pipl  lessen  will  be  urr  sin....

so--juss  as  his  sins  wrr  encumbering  him  to restlessness.....he  strted  tellin  his  story  to  evrry  guy  he  met...hope  this  helps..!!::)