simply joy

There are seconds, they only come five or six at a time, 

and you suddenly feel the presence of eternal harmony, 

fully achieved. It is nothing earthly; not that it's heavenly,

 but man cannot endure it in his earthly state. 

One must change physically or die. 

The feeling is clear and indisputable. 

As if you suddenly sense the whole of nature and

 suddenly say: yes, this is true. 

This is not tenderheartedness, but simply joy.

~ Fyodor Dostoevsky

from The Devils found in 

Collection of the best works of Fyodor Dostoevsky

.