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  • AlGhazalisIhya-Book_of_knowledge, page : 56

(which will be discussed in its proper places), learning, and instruction.

These sciences are not recorded in books and are not discussed by him whom
Allah has blessed with any of them except among his own circle of intimates who
partake with him of them through discourses and secret communication. This last
method is nothing but the occult science, which the Prophet had in mind when he
said: “Indeed of knowledge is a branch that resembles a hidden thing: no one
grasps it except those who know Allah: whenever they declare it no one fails to
recognize it except those who do not know Allah. Despise not, therefore, a
learned man whom Allah has blessed with this knowledge because Allah Himself
does not despise that man once He has imparted to him that knowledge.”

The second part, namely, the science of practical religion, is the science of the
states of the heart, of, which the praiseworthy are fortitude, gratitude, fear, hope,
resignation, devotion, piety, contentment, generosity, recognition of one‟s
obligation to Allah under all circumstances, charity, good faith, morality,
fellowship, truthfulness and sincerity. To know the truth concerning these states