Doctrine coalesced as Jacob Joseph, Dov Ber, and the latter's disciple, Rabbi Elimelech of Lizhensk, composed the three magna opera of early Hasidism, respectively: the 1780 "Toldot Ya'akov Yosef", the 1781 "Maggid d'varav le-Ya'akov", and the 1788 "No'am Elimelekh". Other books were also published. Their new teaching had many aspects. The importance of devotion in prayer was stressed to such degree that many waited beyond the prescribed time to properly prepare; the Besht's recommendation to "elevate and sanctify" impure thoughts, rather than simply repress them during the service, was expanded by Dov Ber into an entire precept, depicting prayer as a mechanism to transform thoughts and feelings from a primal to a higher state in a manner parallel to the unfolding of the "Sephirot". But the most important was the notion of the "Tzaddiq" – later designated by the general rabbinic honorific "Admor" (our master, teacher and rabbi) or by the colloquial "Rebbe" – the Righteous One, the mystic who was able to elate and achieve communion with the divine, but, unlike kabbalists past, did not practice it in secret, but as leader of the masses. He was able to bring down prosperity and guidance from the higher "Sephirot", and the common people who could not attain such a state themselves would achieve it by "clinging" to and obeying him. The "Tzaddiq" served as a bridge between the spiritual realm and the ordinary folk, as well as a simple, understandable embodiment of the esoteric teachings of the sect, which were still beyond the reach of most just as old-style Kabbalah before.