The pe פ represents allegory <ref>[[Ga 4:24]] Which things are an allegory: for these are the two covenants; the one from the mount Sinai, which gendereth to bondage, which is Agar.</ref>, parables and dark sayings [riddles] <ref>[[Ps 49:4]] I will incline mine ear to a parable: I will open my dark saying upon the harp.</ref> <ref>[[Ps 78:2]] I will open my mouth in a parable: I will utter dark sayings of old:</ref>,types <ref>[[Ro 5:14]] Nevertheless death reigned from Adam to Moses, even over them that had not sinned after the similitude of Adam’s transgression, who is the figure [type] of him that was to come.</ref>, shadows <ref>[[Heb 10:1]] ¶ For the law having a shadow of good things to come, [and] not the very image of the things, can never with those sacrifices which they offered year by year continually make the comers thereunto perfect.</ref>, as well as the mystery <ref>[[Ro 16:25]] ¶ Now to him that is of power to stablish you according to my gospel, and the preaching of Jesus Christ, according to the revelation of the mystery, which was kept secret since the world began,</ref> itself.

The visible yod י hanging from the kaf כ produces an invisible yod in the body of the pe פ. The allegory, parables, riddles, types, shadows and mystery speak of invisible things using visible things. They speak of the heavenly things using earthly things.