Keep sensitive to the condition around us!

It was my first working day after a long vacation.
No any special things happened, All things was same the old.
But I have new feelings on the current job condition:
To find out that some of the feelings feeled before is not very good or right,
Why?
Why I can get new feelings after a long vacation, and why
I can't get the new feelings during the period of the day and day working times!
The condition was not changed, but the mind was changed!
The new mind to the old condition can generate new feelings.
The old mind to the old condition can't generate new feelings,  I can't feel the
new feelings after a long vacation If I don't change my old mind, A way
to change old mind is that touch more new conditions! Use the mind from the new condition
to attack the mind from the old conition can generate powerful feelings.
So it gives me a conclusion that ask more "why" to our current conditions
can keep me sensitive to the conditions!