Russian language for crazy

Sometimes native speakers don’t know why they speak so, instead of differently. Therefore the certain words and expressions are easier to learn and not to puzzle your brains why they are used so.
Why does the textbook have such strange title? The matter is that the people, wishing to learn Russian, seem a little bit crazy.

Present Tense of verbs in Russian is formed from the verbs of imperfective aspect only! Thus, when you want to say about what you’re doing now or about repeated action, you use the verbs of imperfective aspect.

When an action is taking place once, use the verb of perfective aspect. When an action is taking place several times (repeated), use imperfective aspect