Spain found missions and presidios A. to convert American Indians to Christianity, and C. to teach American Indians how to live as Spanish colonist.
It was a way to try that the Indians become sedentarian in the frontier of the Empire. The missionaries often learnt about the Indian culture in order to teach them Christianity in a way they would understand, but it was a non-planned effect of the establishment of missions. I any case they would want the Indians to become soldiers, because they might have turned against them.
You've given me no options so I'm going to say it's that he wants to tell you about his life.
Describing the struggles of the urban poor.
