When Udhav ji asked Lord Krishna that why He had left Gopis suffering from the pain of His separation, Lord replied that this pain for a soul is far more valuable than His physical presence beacause He cannot be around in His visible form forever but the unbearable pain caused by his desertion keeps Him always invisibly around. So whosoever is very dear to Him, He sets that heart ablaze with the spirit of love as there are chances of deviation in all the routes to God but the one who is victimized by His love, can never get distracted.