Unfortunately in my experince there wasnt' an experience of moving towards forgiveness, hope I didnt imply that, but seeking something higher- meaning convinencing ones self that those feeling in 8 of cups may not be that important after all...and they become something one is willing to compromise to find something greater- maybe that wish in the 9 of cups (or wishful thinking- whichever is the case). It depends on the other cards.
In a relationship it could be moving past something you thought was a standard of "emotional fulfillment"- but it's not there --so you muster up your courage and strength (8) and move on into the nines. Same with the 8 of swords- (holding ones tounge or being bound by others expectations- maybe not saying something you thought was important to say), and 8 of wands, (which could be a quick conclusion or action bringing about a conclusion) or 8 of pentacles, (humbling oneself to learning a new skill vs. what one knows). - all the eights are about moving forward- seeking higher elevation.