No Hebrew poet in the Middle Ages was illiterate, for the poetic instinct was fed on the fancies of the Midrash.

This accounts for their lack of freshness and originality.

The poet was a scholar, and he was also a teacher.

Much of Kalir's work is didactic; it teaches the traditional explanations of the Bible and the ritual laws for Sabbath and festivals; it provides a convenient summary of the six hundred and thirteen precepts into which the duties of the Law were arranged.

But over and above all this the genius of Kalir soars to poetic heights.