Warm: to bring to the temperature of a human body and lose human boundaries; in contrast, “to heat” is to raise beyond the temperature at which human touch cannot feel the world, or to be on that scale. A touch can also be warm, without heat, if it has the texture of human skin.

Big Sagebrush on a Warm Day

Despite the nearness of the snow, the leaves, when touched, have no temperature at all. Perfect warmth! Even their soft texture is warm to the touch.