A LUDIFU Knowledge Codex · Free · Sourced · No Opinion
The most complete plain-language reference for India's oldest philosophical tradition. Whether you have studied this for years or are starting today — you will understand it here.
108 Sanskrit texts, written over a thousand years. The end of the Vedas — and the beginning of Indian philosophy. Start here if you are new to all of this.
The philosophical school built on the Upanishads. One central claim: there is only one reality. Everything else — every object, every self — is that one reality in different forms.
Not a god in the usual sense. The single underlying reality from which everything arises and into which everything dissolves. The hardest concept to explain. The simplest thing there is.
The self. Not the personality, not the thoughts, not the body. The unchanging witness behind every experience you have ever had. The Upanishads claim this is identical to Brahman.
The shortest of the principal Upanishads. Twelve verses. One question: what is consciousness? Four states of awareness described — waking, dream, deep sleep, and Turiya. Start here.
One of the longest and oldest. Home to Tat Tvam Asi — the most discussed sentence in all of Indian philosophy. Uddalaka's teaching to his son Śvetaketu. Eight chapters of the Sāmaveda.
The full directory. The 10 principal texts with complete verse coverage. The remaining 98 with summaries, key verses, and their place in the broader tradition.
The non-dual school of philosophy. Systematised from the Upanishads. The claim: the individual self and universal consciousness are not two different things — they are one. Every sub-argument flows from this.
Born around 700 CE. Died around 750 CE. In roughly 32 years, he wrote commentaries on the principal Upanishads, the Brahma Sutras, and the Bhagavad Gita — and founded four monasteries that still exist.
Brahman. Ātman. Māyā. Avidyā. Turīya. Mokṣa. Each concept explained at all three reading levels — with the Sanskrit term, its source, and what it actually points toward.
Every page has three reading levels. You choose based on where you are — not who you are. The same person may read Curious today and Deep Dive next month.
Plain language. Analogies that land. No Sanskrit without translation. The right entry point for everyone — school student to expert — if you are coming to a topic fresh.
The key philosophical arguments. Sanskrit terms explained fully with transliteration. Historical context. Links to primary sources. For when Curious is not enough.
Full textual analysis. Primary source citations inline. Academic references. Comparative philosophy. For serious students and researchers who want everything.