At times our success, sustenance, contentment, etc is blocked or negatively affected due to a sin we are not giving up or a fellow human being we have harmed. This can even affect the mind, health & family too.
Sometimes we hunt for the cause of our downfall, loss, frustrations or unhappiness yet it is glaring us in the face! Transgressing against the Almighty or causing harm and grief to a fellow human being cannot do us any good.
If human nature makes us falter we should know that the Creator, who is Most Forgiving is always waiting for us to turn to the right path!
If we have caused harm to others we should put a stop to it and never be too proud to seek forgiveness from them directly.