Area performer and radio-show host Shellie Moore Guy is slender in frame, and not particularly tall. Yet in the Playcrafters Barn Theatre's presentation of Lorraine Hansberry's A Raisin in the Sun, the actress -- in her role as matriarch Lena Younger -- projects such expansive love, pride, and strength of character that she appears larger than life. Lena's adult children, Walter Lee (Curtis Lewis) and Beneatha (Alysha McElroy-Hodges), may tower over her, but there's never any doubt that Guy's selfless, resolutely devout mother is the one in charge; she guides both her family and Hansberry's drama with an impassioned righteousness that would be mythic if it weren't so complexly structured, and so wonderfully human.