I've seldom been thinking lately,

and rarely get struck by those profound things anymore,

There was a period when I would inexplicably fall into deep thoughts about life, death, existence, and so on.

I would even cry easily, engulfed by a sense of nothingness.

I feel that state was extremely similar to that of clinical depression.

But it hasn't been that easy lately.

It might be closely related to my physical state; when my endocrine system isn't functioning well, my mood tends to be relatively low and emo.

Now that my body is full of energy and my endocrine system has returned to normal, those emotional things have hidden themselves away.

But, what I want to say is that inner peace is still very important, and no matter when it is, thinking is crucial.