This is the 10732nd most frequent Russian word.
впадайте
"Впадайте" is the imperative form of "впадать," meaning "fall into" or "succumb to."
In this sentence, 'впадайте' is used in a figurative sense, meaning 'to fall into' a state or emotion, here despair.
Не впадайте в отчаяние, впереди всё будет хорошо.
Don't fall into despair; everything will be fine in the future.
Here, 'впадайте' describes the physical action of a river flowing into a larger body of water, in this case, a lake.
Река впадайте в огромное озеро, образуя красивую гавань.
The river flows into a large lake, forming a beautiful harbor.
In this context, 'впадайте' is used metaphorically to describe reverting to old or previous behaviors or states.