Self Discipline Vs Freedom

[Abhijeeth]

I had just seen leo'so video on SELF DISCIPLINE vs FREEDOM.

The main highlight was -

IF YOU ARE DISCIPLINED NOW , YOU WILL EXPERIENCE FREEDOM LATER. DISCIPLINE IS AN INVESTMENT.

But harsh discipline is neurotic . 

What is the difference between 

Harsh discipline and discipline?

PS : Only folks who've seen the video or read about this or experienced this or leo help me