I am pretty sure she's saying how she's trying to carry her own soul/heart but it's becoming too much for her to carry and keep it emotionally stable/taut. I think the canvas is black because it's tainted, and in the video, the man is going to paint a white picture while the canvas is a metaphor for his soul/heart, painting it with all white, representing goodness, purity, and mostly liberation.
I am pretty sure she's saying how she's trying to carry her own soul/heart but it's becoming too much for her to carry and keep it emotionally stable/taut. I think the canvas is black because it's tainted, and in the video, the man is going to paint a white picture while the canvas is a metaphor for his soul/heart, painting it with all white, representing goodness, purity, and mostly liberation.