If you meditate on your goals and purpose, you wont need nearly as much self discipline to achieve your goals. I think self discipline is more than just telling yourself to do things.
Eloquently phrased! I agree. The trick to having self-discipline is to learn how to make self-discipline unnecessary, to a large degree. Like you said, though, we will always need it to some degree. I think if you need to constantly beat yourself over the head with it though, the system you've established for productivity is likely to crush your creativity and fall apart when it comes to the long-term application.
Take music, for example! The best way to ensure that a child develops the "self-discipline" to become a good musician, is to teach them to love music. Teach them to treat it like labor, and they tend to fail in the long-run, no matter how many times you force it on them.
Our limbic systems are like children. The pre-frontal cortex is like the adult. We need to use the pre-frontal cortex to creatively find ways to nurture and encourage our children, and teach them to willingly do the tasks they need to do. Then, the need for discipline, while still extremely important, is much more minimal.