I've learned that it all depends on the students learning style starting with a clear distinction between where the spark comes from
INSTRINSIC MOTIVATION (the internal spark ): like when a student does something because it is satisfying, interesting or enjoyable .
like when practicing difficult techniques because they find the challenge enjoyable.
EXTRINSIC MOTIVATION ( that external push ): when a student is driven by outside factors - rewards ,grades ,praise , they avoid a negative consequence .