You are right. That “Catholic source” is from a private journal as far as I can tell, about a private revelation to a particular saint. A lot of times they were only able to communicate with their spiritual director and had no idea they’d some day become public record for all to see over an electronic “seed-multiplier and scatterer” aka “the Internet.”
It may or may not have any bearing whatsoever on “reality” for you or me, and it is not binding upon Catholics to either agree or disagree. Some of the things they would write and then later clarify or even change. They grow, and that’s part of being saints.
So to that saint, the Lord needed the saint to hear that. We need make nothing more of it than that. If I can get a useful idea or prayer or some hope from a saint’s revelation, that that’s great. But it isn’t “binding” upon Catholics.
That’s one problem I think I’m seeing less of than I used to. Is that Catholics are learning more about what is a “teaching” and what is either a tradition or a personal thought that is documented for no particular interpretation. Some saints, like especially doctors of the Chruch, wrote things that can change your heart just to read through once or more if you can identify with with, like Teresa of Avila & St. John of the Cross, who made quite the pair it seems.
And then the Little Flower? Saint Thérèse of Lisieux? And the Little Way? All wonderful ideas and useful for many I think. They are not binding; we get to “pick and choose” which flavors we wish to use.