Why can't everyone receive the eucharist? (an account)

[mdgspencer]

Why non-Catholics generally and those who have committed a mortal sin without confession can’t go to communion in a Catholic church.
see laviecatholique.blogspot.com/2006/08/why-cant-everyone-receive-eucharist.html

 

[SunnaB16]

Thanks for that double link (including the one on Grace).
Pity it couldn`t be made more public.