The word Halal means are permissible. Anything that is declared halal means that it is allowed by the religion
Concept of Forgiveness:
How many times has it been that we hurt someone unintentionally? It is not necessary that the harm inflicted by physical. It can be spiritual or mental. Either way, it is not worthwhile to be the cause of somebody’s grief. That is why, not just Islam, but every other religion too emphasizes the need to ask for forgiveness.