If we never play with abandon, - our expression will be too technical and will feel stale
If we never practice with discipline - our expression will be sloppy and limited
If you’re more on the technical side - experimenting with spontaneity can be helpful (a common practice is improvising for 20minutes in your medium)
if you’re more on the spontaneous side - learning something very structured and exact can be helpful (a common practice is precisely imitating someone elses work)
Flow happens in that place where discipline and freedom meet.