Past tense.

I wonder what places I have already visited for the last time...

The effect.

Your third grade science teacher taught you that thunder comes after lightning
because sound travels slower than light.
 What she meant was, nothing makes sense while it is happening,
yet everything happens at once.

The monster

I fell into a void, and was saved by kind monsters
who taught me how to express myself in the most awkwardly manner.

If I don't seem like myself to you anymore, it's because you never knew me...