With youth: What does it mean to be practical?

The following is an excerpt from a samvaad (dialogue) session with Acharya Prashant.

Acharya Prashant (AP): Alok is asking what one should do to be a good engineer. I will elaborate it, “What one should do to be good at anything?”, now the question means what does it mean to have a good life? He is wondering whether one has to be practical or theoretical. He seems inclined towards…