Right angle
Right angle [∞]
The right angle of the dalet ד means that the information is not complete, like a pipe that is pinched rather than smoothly transitioned. We say that it is a command. As a metaphor, it represents the command itself, the result of the command, or the response to the command. God commanded the creation into existence. The universe is the result of the command, and testifies to to the invisible nature of God. [1]
But the command does not reveal all about God. The revelation of God is the rosh ר. We will come back to this. Though in English three words are nearly synonyms, we use them in a technical way: command, revelation, teaching. The dalet ד is the command. The revelation or rosh ר contains personality. And teaching or lamed ל is a shared heart.