In a recent discussion different thought processes came to the fore. This kept me thinking and added few more stages of the same process for completion. All this is in my mother tongue(kannada):

ಮುಕ್ತಿ, ಸಮಾಧಿ, ಧ್ಯಾನ, ಚಿಂತನೆ, ವಿಚಾರ, ಯೋಚನೆ, ಕೊರಗು, ಚಿಂತೆ, ಚಿತೆ.

Reading from one end to the other you will find that it is like spectrum. Many people are in the middle somewhere between ಚಿಂತನೆ and ಕೊರಗು. The people at the two ends are usually rare to find.

We all know that we can only see using "VISIBLE" light. This forms only a window of the entire electromagnetic spectrum. The other two ends are not visible and appears dark (ends of the spectrum appear same).

:)