Creativity is a voracious animal. It needs to be fed regularly. If you leave it untended for too long, you run the risk of starving your passion and diminishing your spirit.
. . . Natural affections and instincts, my dear sir, are the most beautiful of the Almighty's works, but like other beautiful works of His, they must be reared and fostered, or it is as natural that they should be wholly obscured, and that new feelings should usurp their place, as it is that the sweetest productions of the earth, left untended, should be choked with weeds and briers.
The spirit, like the body, can be strengthened and developed by frequent exercise. Just as the body, if neglected, grows weaker and finally impotent, so the spirit perishes if untended.