I don’t know but it might have to do with humility. Joseph Cardinal Ratzinger, now our Pope, asked to retire. It may have been for that reason the Holy Spirit chose him. St. Padre Pio didn’t enjoy the gifts he had even though he could do some cool things with them. I posted under “divine graces” in the moral theology forum, a list of demonic spirit signs and one is attachment to consolations (like, I guess, a feeling of ecstacy or saying something profound). The litany of humility has us ask to be delivered from the desire to be looked to for counsel (if I had humility I would not post my opinions so much based on my speculations and some things I heard that are not Church teachings). Maybe it says to God we somehow have the stuff or the spiritual disposition to make use of those gifts. We could fall into Pride thinking we had “the stuff” to be an unfiltered administrator of those graces. Most of us waste the little gifts.
These charismatic gifts may be wished for by well-intentioned people to serve Christ, but Satan could end up speaking through one with enough Pride to open that door for him because Satan apes God’s actions in us (or something like that). Possessed people speak in different languages unknown to them and ministers have predicted the end of the world and have driven people further from God’s truth in general (not to mention the Bible says we’ll never know when the end will come).
I think we should ask God for graces we need for certain problems in our life and in our quest for a better relationship with Him and not to be something special–even if we think it would help him more. Stick with the “doing the little things” spirituality of Therese of Liseaux and God may react to that humility with a gift of prophecy or bilocation–or not. Make yourself His tool and you may become a big tool of His in some public way–or not.
You may not like what would come if you could speak in tounges or levitate right now. You might be nearly adored by some charismatics as John the Babtist was before they realized he passed them to Jesus’s care, considered suspect by non-charismatics, looked to by the curious and betrayed if you don’t meet someone’s expectations. You would certainly have to be far more holy because God would expect more things of you as I believe he does consecrated souls–to handle correctly such a powerful gift. To whom much is given, from him/her, much is expected.
These are just my guesses, but ask someone far more qualified. You can’t go wrong with a priest or theologian who accepts wholeheartedly the teachings of the Church and cares much for the writings of the popes, whether or not he prefers the tridentine mass and the earlier catechisms for most things.