Donations is the module for money given, not earned: the gifts a charity or nonprofit receives, recorded against the donors who gave them and the designations — the purposes — they were given to, and posted straight into the accounts like every other money the organisation handles.
A donation here is money received: a gift that arrives in a bank or cash account, recorded once, and posted as one balanced entry — the receiving account debited, and the income account of its designation credited. There is no approval stage and no subledger to reconcile afterwards; the donation is the record, and its journal is part of it. The chart of accounts carries a Donation Income group for exactly this money, so gift income stands apart from trading income in every report the organisation publishes.
What the module keeps, beyond the money itself, is the stewardship story: who gave, to what purpose, by what method, and what the printed receipt said — the story a charity must be able to tell its donors, its auditors and its board without assembling it by hand.