2500 years ago, the Buddha-to-be was in his early 30’s when he decided that he wanted to get to the bottom of why he could never find lasting satisfaction from anything in life. He left a pretty great life situation (by 500 BCE standards!), gave up everything and became a wandering mendicant. What was different about Siddhartha Gotama was that he was brilliant, inquisitive, logical, deductive, endlessly patient and tested everything to the enth degree. Being already familiar with Brahmanic, Vedic and Jain doctrine and practices, he spent years devoted to personally testing it all out meditatively, seeing where it led.
Although two of his meditation teachers achieved extremely high levels of medtitaive achievements, they mistakenly thought that they had become one with the great Brahma; that their “self” merged with the Great Self of the universe. The Buddha-to-be meditatively surpassed those teachers but found that their assumptions didn’t lead to the end of suffering, so he left those teachers to move on his own into uncharted territory.
As he penatratively practiced each aspect of these meditative practices, he painstakingly and thoroughly tried out alternatives, discarding what led to dead ends and following that which led to better results. In the end, it came down to purifying his mind in order to remove any and all defilements that hindered his ability to see what is really going on. Eventually he reached a point where his mind was crystal clear, free of defilements, disturbances and hinderances and he was able to see things as they really are.
At this point he was able to finally see that there is not a permanent entity or soul but a consciousness which is an ever-changing flux of states of consciousness with a continuity that moves from one birth to another. The sentient being inherits that stream of consciousness from past existence and what keeps this process moving, what keeps living beings moving on roaming from life to life is ignorance and craving. The deeds that one does with intention are a reflection of one’s mind and there are natural consequences of those intentional actions, good or bad.
By purity of view, intention, speech, action, livelihood, effort, mindfulness and samadhi, one can understand what is suffering, the origin of suffering, the cessation of suffering and that path out of it.
So, when it comes to forgiveness, compassion naturally arises within a person on the Buddha’s Noble Eightfold Path because they abandon ill will. One has compassion towards a person who is afflicted by greed, hatred and delusion. Forgiveness comes much easier and may take a different form.
The Buddha’s path is much, much different from Christianity. Firstly, being an anthropomorphic myth, the Christian creator god himself exhibits all of the unwholesome tendencies like tribalism, hatred and jealousy that keeps beings in cycles of rebirth. In Christianity, a person can be ethically and morally harmful to themselves and others, done zero introspection but will go to heaven by virtue of forgiveness. Many Christians support people who openly express greed, hatred and delusion that comes out in the tribalism that is so different from Buddhism. A person on the Buddha’s path sees the suffering of those clinging to greed, hatred and delusion and compassion arises and forgiveness makes more sense.
Check out this thread on personal forgiveness: