Easy Pegasus!! I don't think it is blatant skygodliness to expect a PPL, new or otherwise, to understand the principals of ATSOCA, any more than understanding, say, the overhead join is skygodliness.
I'm wondering if the OP could have worded their question better, and I'm willing to give them the benefit of the doubt in this case.
As others have said, there is a full explanation in CAP413, and I'm sure there are CAA Safety Sense publications on the subject.
I'm guessing that Tobster does it the 'millennial' way, use t'internet forums, rather than do the research yourself!
Tongue now firmly removed from cheek!!!