The mandukpenisat is an openise, the smallest of the openisats. The original vedic text has only 12 mantres. Based on these 12 mantres, we have gora pada charia who wrote the caricas which are philosophical verses. So they are called the manduka carica. And since now we have got all the wadi gods on our side, i think we can proceed along merrily.
Swami Sarvapriyananda teaches one of the shortest and most profound upanishads accompanied by Gaudapada's Karika. This lecture covers Mantra 2.