Ven,
I guess unless one is willing to accept certain mystical principles, this will never make sense. But Paul told us he wished he could be cut off from Christ if it meant that the Jews were brought to Christ. This would have been suffering for him. Paul also had the "thorn in his flesh" that Christ told him to live with, that Christ's power was made possible through Paul only in his weakness. Something to think about I suppose. But, if you knew that your suffering would save people, would you suffer?