SharePoint really has a mind of it's own. For whatever reason one day all of the search service applications stopped working. I found several articles that stated that all of the search service application objects needed to be deleted and rebuilt. Other article indicating that the indexes needed to be cleared out. Finally, I found this one line powershell gem that fixed my issue of event IDs: 6482, 6398, 2159. Voila...all the event errors stopped.
Get-SPEnterpriseSearchServiceInstance -Local | Start-SPEnterpriseSearchServiceInstance
http://social.msdn.microsoft.com/Forums/en-US/3e24eaae-86a3-4f6c-89de-1dc38f3a55f5/the-search-application-guid-on-server-servername-did-not-finish-loading?forum=sharepointsearchprevious
