30 Minute Language ... Update! The UMIN Methode

Searching for Hindi manuals, I came across a book about alternative language learning. It is based on the everyday 30-minute studying, first only through listening to the foreign language and repeating, the learning of the words and the grammar comes later. I am not doing anything anyway ... I thought I should try this thing and if it works at least to some extent, it will be a gain:)