Feathering and blurring look fairly similar but are two completely different tools. Feathering means softening your image's hard edges, allowing it to gradient in the other image or background. Blurring, however, helps you blur any part of the image, making it hazy and blend. Feather only affects the opacity, so the object's edges will get more transparent. Blur, on the other hand, averages both the opacity and colors, taking the neighboring pixels.