This is the 6223rd most frequent Russian word.
трогать
To touch.
The word 'трогай' from the verb 'трогать' means 'touch' in this imperative sentence, indicating a physical action.
Не трогай мою книгу.
Do not touch my book.
The verb 'трогать' here is used figuratively to mean 'to emotionally move or affect' someone.
Этот фильм трогает душу.
This film touches the soul.
In this context, 'трогать' is used to mean 'to address or handle', applied in a non-physical sense.