“If you can explain the WHY of things then that makes a huge difference to People’s Motivation. They understand Purpose. Process of Learning and how it should be. Make it interesting.” – Elon Musk
As Elon Musk has rightly said answer to the above question can be very useful to build and keep your interest to Learn something.
Elon also mentions the use of Gamification to make learning fun.
Here is a video in which Elon Musk talks about this and more at the Khan Academy.
Image and Video Source – Youtube – Khan Academy
I wrote a whole Post on this topic sometime back. You might benefit from reading that.