The has been one of the best trips I have taken so far. Every year in August people walk from Nicarauga, Panama and all over Costa Rica to a beautiful church in Cartago. I was a very moving trip, we saw many people there who were ill and of many more people there just praying for someone else.
Thanks to Wikitravel here is the legend....
The legend: The Basilica home of "La Virgen de los Angeles"
On the 2nd of August 1635 Juana Pereira, a young girl went into the forest near her house to play by the river. There she found a piece of rock in the shape of the Virgin Mary with a small child. She thought is was a doll and played with it. Later she took it home and put it in her room. The next day she returned to the same spot and again found a very similar representation. That evening she returned with it and went to put it with the first one she found. However, the first one was no longer in her room. On the third day she returned to play by the river and, again, found the Virgin. This time she ran right back to her room and again, found that the ones she had taken home were not there. She then reported this to the priest in Cartago. He went with her the following day and took the statue they found there back with him to the city. There he locked it in a coffer. The next day they returned to the river to find yet another (or same?) statue there. When he returned to check the locked coffer he discovered it empty. This was taken as a sign that a church should be built on the site the statue kept returning to.