When one has a clean heart then effort is made from the heart rather than effort for show. I have to maintain a determined thought for my spiritual effort. Of course obstacles will come but I have to maintain a strong heart. One who has a clean heart and a strong heart doesn’t have any animosity towards anyone, and this is how their heart becomes strong. I have to maintain good wishes and pure feelings for myself and for others. If I let any other feeling come, then I can’t maintain good wishes. In effort, if you allow any negative feelings to come then you will get tired very easily. You will then become disheartened. So instead of moving away from someone remain merciful and kind.