Lecturn in itself is a name and a form and a use. I don't deny it has a particular use, but i deny it has any reality. Show me the thing called electern. What will you touch? Wood. The wood exists without the lectur. Ifuitsel, if it's a metallic lecturn, very good, then the metal is the reality. Thereof there is these the substance, the material out of which it is made. And the rest is a name, a word and a forms and a use what is. But just stick to the framework of this.
Swami Sarvapriyananda teaches one of the shortest and most profound upanishads accompanied by Gaudapada's Karika. This lecture covers Mantra 2.