Doubting Artist #2

I am reading Barbra Kingsolver's new book, The Lacuna. The charachter portraying Frida Kahlo is telling a young writer to go ahead and write what moves him, rather than what those around him are writing. She says, "I think an artist has to tell the truth. You have to use the craft very well and have a lot of discipline for it, but mostly to be a good artist you have to know something that is true." I am thinking about this because I am painting undocumented immigrants right now. While I feel certain that this is important work, I feel equally certain that my painting craft should continue to move forward in the midst of this work.