I talk to the saints as if they are firends and ask them to pray for me, or to join me in praying for a cause, as I would any friend on earth. Those I ask depend on who has inspired me, or who I have read has experience with the help I need. Feeling pretty desperate these days, St. Joseph (teresa of Avila’s go to guy), St. Jude (hopeles causes), and St. Anthony are big favorites. Also Mary Magdalene and Catherine of Siena, who epitomize great leaders to me and always Mary, mother of Jesus.
Saints also have special causes, either because of missions they worked with during their lives, or because of what their earthly supporters lobbied the Church to have affiliated with their names. There is an interesting article available on
www.americancatholic.org in St. Anthony’s Messenger about this in November or Decmebr’s issue: how saints are assigend their patron causes. It kind of disappointed me. I thought the cuases would always be things that the saints were known to help while still alive.
At any rate, you can ask any one to pray for you for anything, if you so wish. but if you are interested in looking up certain saints to appeal to them directly for causes, in this modern age you can google “patron saint of prisoners” for example, and it will give you sights that name saints affiliated with prayers for prisoners such as Maximilan Kolbe (who is also patron saint of chemical addicts)…or any cause.