A garment can always be removed
מה תשתוחחי נפשי ותהמי עלי
Why are you downcast my soul, and why are you bewildered on my account? (Tehillim 42:6)
Anytime I feel a wave of depression or sadness wash over me, I must remember that my essence is pure; Hashem created it and placed it within me. If I regard something about myself as “bad”, I must remind myself that it is only a garment that I can still remove from over me. Nothing that I do can tarnish the purity of my soul.