Today is the day when the Cardinals gather in Rome to pray and vote under lock and key, hence the term "conclave" (with key).
A common misconception is that Catholics believe that the Holy Spirit chooses the next Pope. On the contrary, only scripture is said to be inspired. A cursory glance at history will bring to light about half a dozen Popes that were clearly far from good examples.
Benedict XVI, when he was a Cardinal, once made the same point: "The Holy Spirit does not exactly take control of the affair, but rather like a good educator ... leaves us much space, much freedom, without entirely abandoning us ... There are too many contrary instances of popes the Holy Spirit obviously would not have picked!"
What then are we to do?
Get on your knees and pray that the Cardinals allow the Holy Spirit to influence their choice and that they chose someone holy and strong.