Something more than say, ... missing a weekend's Mass.
Unfortunately, some people don't know what the Church teaches - to include priests.
To separate one from God's union is to commit a mortal sin. Missing Mass is NOT necessarily a mortal sin. A mortal sin must be a serious offense, the person must KNOW it is a serious offense, and he must do it with full intentions anyways.
There are too many variables for one person to judge whether another missing a Mass is considered a mortal sin. I have cringed when I hear some Catholics (including priests) say this.
If one of your children missed the annual family reunion, ... would you consider them disinherited ?
It is not important of what I think, but how that person feels about missing the reunion. I would love the person whether they showed up or not. But if they separated themselves from the family without any good excuse - that they willingly knew that they were wanted there but refused to go, then THEY are disinheriting THEMSELVES, I am not disinheriting them. Again, apply this analogy to what God does. WE disinherited ourselves when we sin mortally (as 1 John says).
Brother in Christ
If one of your children missed the annual family reunion, ... would you consider them disinherited ?
It is not important of what I think, but how that person feels about missing the reunion. I would love the person whether they showed up or not. But if they separated themselves from the family without any good excuse - that they willingly knew that they were wanted there but refused to go, then THEY are disinheriting THEMSELVES, I am not disinheriting them. Again, apply this analogy to what God does. WE disinherited ourselves when we sin mortally (as 1 John says).
What I believe I hear you saying ... (and, please do correct me if I am mistaken ...) ... is that it is not so much the act (i.e. of missing Mass) ... as it is the attitude of the heart.
So ... it would seem that it will not so much be our catalogue of works which will be judged by God in our time of passing from this world, ... but rather,
... the attitude of our hearts (i.e. whether inclined toward God or not) ... which will be the deciding factor per our livng eternally with Him (or not).
With such I would agree.
Certainly it was the heart attitudes which distinguished the two thieves at the crucifixion ... rather than their catalogue of works (which one would assume were rather criminal).