Mundaka-2-1-7-tasmācca

Sri Shankara’s Commentary (Bhashya) translated by S. Sitarama Sastri

Com.—Tasmat, “from him also, from the purusha. ‘Variously,’ in various groups such as vasus, etc. Samprasutah, well born. Sadhyas, a species of Devas. Men those that are entitled to perforin karma; cattle, both of the village and the forest. Vayamsi, birds. The food of men, etc., The Prana and the Apana; corn and yava, to be used for making havis (oblations). Tapas, both as an indispensable adjunct to karma whose efficacy lies in the purification of the performer and as an independent means of attaining the fruits of karma. Devotion, that state of mind which precedes the mental calm and a belief in a future state necessary to the accomplishment of all human ends. Similarly, truth, i.e., avoiding falsehood and speaking out what has really happened, without harm to others. Brahmacharyam, absence of sexual intercourse. Injunction, the statement of what ought to be done.

Links
Various resources on the Mundakopanishad
Upanishad Series – Mundakopanishad Commentary by Swami Chinmayananda