Your soul is your core essence.
Your mind is your - thoughts, creativity, reasoning, vision, and memories.
Your heart is your - feelings, emotions, vibes, and the spirit you are in.
If your soul is feeling good that means you're thinking right and doing the right stuff.
If your soul is feeling bad that means you're thinking wrong and doing the wrong things.
Or you're not thinking what you should be and not doing what you should be doing.