[Pooya/Ali Commentary 96:4] Qalam (pen) is a symbol. See Qalam: 1. Pen implies reading, writing, books, study and research. Knowledge refers to the laws governing the physical phenomenon, self-realization and know-how of the spiritual world. The words read, recite, proclaim, teach and pen refer to the duty of making public, displaying, depicting or explaining the message of Allah in heraldic terms.