Paul says: “Indeed I count everything as loss because of the surpassing worth of knowing Christ Jesus my Lord. For his sake I have suffered the loss of all things, and count them as refuse, in order that I may gain Christ and be found in him, not having a righteousness of my own, based on law, but that which is through faith in Christ, the righteousness from God depends on faith; that I may know him and the power of his resurrection, and may share his suffering, becoming like him in his death, that if possible I may attain the resurrection from the dead” (Philippians 3:8-11)
Another dimension of Paul’s thought on the meaning of suffering is his conception of suffering as a means for sanctification, keeping pride at a minimum and trust in God at a maximum. He says: “And to keep me from being too elated by the abundance of revelations, a thorn was given me in the flesh, a messenger of Satan, to harass me, to keep me from being too elated. Three times I besought the Lord about this, that it should leave me; but he said to me, ‘My grace is sufficient for you, for my power is made perfect in weakness.’…For the sake of Christ, then, I am content with weaknesses, insults, hardships, persecutions, and calamities; for when I am weak then I am strong” (2 Corinthians 12:7-10).
It is in weakness that we are more apt to trust in Christ because we realize that what we accomplish is not of our own doing, but the grace of Christ is working in us. Furthermore, it is in our weakness and suffering that we grow in humility and cannot pride ourselves in our accomplishments. We suffer “to make us rely, not on ourselves but on God who raises the dead.” (2 Corinthians 1:9)
We see in these verses of 2 Corinthians 12 that this suffering is once again “for the sake of Christ.” It is through grace that Paul can be content with suffering. We receive here an insight into the effectiveness of grace. Grace helps us to participate in the salvific act of suffering and to be content with it.
This is why Paul can say in his letter to the Galatians that “I have been crucified with Christ; it is no longer I who live, but Christ who lives in me…who loved me and gave himself up for me.” (2:20) Christ gave himself up for us in the salvific act of his Passion and death; Paul sees himself doing the same in participating in the Passion and death of Christ.
Paul reveals to us the paradox of the cross. To be crucified usually means death, but for Paul it means Christ living in him. In suffering, when united to Christ, death now means life. This is why he says in 1 Corinthians: “For the word of the cross is folly to those who are perishing, but to us who are being saved it is the power of God” (1:18).
There is this intimate bond between the cross, the epitome of the sufferings of Christ, and the suffering of the people which is a participation in the self-same cross. Thus participation in the cross through suffering is a way of obtaining grace, the power of God to participate in salvation. This is also why Paul can say elsewhere in Galatians: “Far be it from me to glory except in the cross of our Lord Jesus Christ, by which the world has been crucified to me, and I to the world…Henceforth let no man trouble me, for I bear on my body the marks of Jesus” (6:14, 17).
http://www.catholicnewsagency.com/resources/sacraments/anointing-of-the-sick/st-paul-explains-the-meaning-of-suffering/
t:
, I'm not Catholic, but great points around.....all up to last part about porn, I'm not touching that, my friend. 
