The World's Leading Think Tank!

Welcome to

The World's Leading Think Tank!

Devarai creates and teaches good things that are supposed to mean something to someone, provoke thoughts, for the better, for the good, supporting a good heart to succeed. Good things are helpful (at least for some time) in finding orientation on the journey through life. Good things guide us to a life lived with purpose, a good and exemplary life.

Crosswords

Here, you find the first international virtual exhibition space for crossword art. We showcase the best-crafted American-style crossword puzzles made by the world’s leading crossword authors working in a variety of languages (with a focus on English, Italian, Spanish and German).

Puzzle books

Browse our fantastic collection of books! Devarai® offers a wide selection of puzzle books! We offer Sudoku, crossword and word search books at great prices. With just one click, you can buy a book that Amazon will ship to you in just a few days.

The Heavens of the Peoples

The heavens of the peoples of the earth are the research field of our organization, as it was initiated by our founder, Henning Dierolf. It is about mapping all peoples' heavens with the help of the Torah. It is in the tradition of “Tikkun olam”, which aims to improve and repair the world.

Heyrolf exhibition

This art exhibition is the “coming out” of Henning Dierolf from Schwäbisch Hall, as a non-Christian, even though baptized, raised and confirmed as a German Lutheran, not least because he never really was a Lutheran at heart. Compiled and written down over the years, his wealth of experience can be found here, in order to provide help and support to those who feel the same way, and to bring about change.

Online courses

Devarai offers excellent online classes and study resources at affordable prices. With them you can easily acquire new skills and also hone existing ones. The courses are developed to the highest standards, offering plenty of online learning material and exercises.

Nightdaisy®

Enjoy beautiful music from our record label Nightdaisy®. It was founded in 2020 by Henning Dierolf and its focus is on classical, rock, pop, soul and vocal music. The origins of Nightdaisy® are found in the Books of Moses. The name of the record label is an allusion to Elie Wiesel and his important book “The Night”.

Heyrolf Podcast

In these podcasts, the topics of the Heyrolf art exhibition are discussed and debated, both by highlighting and detailing various aspects and by outlining similar experiences of other personalities in interviews.

Margherite Society

This foundation is dedicated to the teaching of five human rights and the care, education and support of children and adults with potential. We are pro-LGBT, pro-Jewish and pro-Israel, and we are in close friendship with New York (Brooklyn), India (Delhi), Baden (Heidelberg), Berlin (Pankow) and Hesse (Frankfurt). We are constituted by a Franconian Zionism.

Lizardy

Lizardy is the contemporary fashion brand for true men founded in 2024 by Henning Dierolf. The clothing is innovative and heralds new paths to a better sense of being. With our fashion, he can better assert his will in society in order to achieve his goals of greater love.

Support

If you need support using our services and products, please don't hesitate to contact us and we will get back to you as soon as possible.