The Mañjuśrī-Nāma-Saṃgīti (Tibetan: འཇམ་དཔལ་མཚན་བརྗོད, Wylie: 'jam dpal mtshan brjod) (hereafter, Nama-samgiti) is considered amongst the most advanced teachings given by the Shakyamuni Buddha. It represents the pinnacle of all Shakyamuni Buddha's teachings, being a tantra of the nondual (advaya) class, along with the Kalachakra Tantra.
The Nama-samgiti was preached by Shakyamuni Buddha for his disciple Vajrapani and his wrathful retinue in order to lead them into buddhahood. The essence of the Nama-samgiti is that Manjushri bodhisattva is the embodiment of all knowledge. The Nama-samgiti is a short text, only circa 160 verses and a prose section. It is a fraction of the vast Sutras such as Avatamsaka Sutra and Prajñāpāramitā Sutras or the endless ocean of tantras such as manjushri-mula-kalpa and the mountainous Hinayana teachings and sea of sundry extra-canonical works. And yet, the Nama-samgiti contains all of the Buddha's dharmas. It summarizes everything he taught. As Shakyamuni Buddha says of the Nama-samgiti, it is "the chief clarification of words". It is the "nondual reality". Therefore, all sentient beings should definitely study and recite the manjushri-nama-samgiti.