🪷 Lagna and Tithi — Calculation and Scripture Boundaries

Calculated quantity · traditional interpretation · scripture reading · empirical claim — kept distinct

What the calculation actually establishes

Lagna is the ecliptic degree rising on the eastern horizon for the supplied time and place. Tithi is computed from the Sun-Moon elongation, divided into twelve-degree segments. These are reproducible model quantities; they do not empirically reveal a soul's previous loka, future destination, health condition, or moral worth.

Tithi index = floor(normalized Moon − Sun longitude ÷ 12°) + 1

Traditional interpretation boundary

• Lagna, Chandra, and Sūrya have received interpretive roles in jyotiṣa traditions; the application reports those roles as tradition, not laboratory science.
• BG 8.23-26 names śukla and kṛṣṇa paths. Commentary traditions differ on literal, symbolic, and contemplative readings; the computed calendar state alone does not prove liberation or rebirth.
• Bhīṣma's waiting for Uttarāyaṇa is a Mahābhārata narrative. This page does not assign it an independently verified civil date.
• No received source reviewed for this route establishes a one-to-one mapping from the fifteen tithis to fifteen lokas or from a lagna degree to a soul's prior abode.

Responsible use

Treat the output as a transparent traditional computation and a prompt for study, remembrance, and ethical reflection. Do not use it to diagnose health, rank persons, claim certainty about past lives, or replace qualified spiritual, medical, legal, or scientific guidance.

Continue to /cosmic-time for the complete received BG 8 reader, BG 9.17, or the Taittirīya Upaniṣad profile. Each source retains its own context and authority boundary.

🪷 ॐ नमो भगवते वासुदेवाय 🪷

Lagna and tithi are calculated model quantities. The connected scripture readings do not convert them into claims about soul origin, destination, health, morality, or spiritual attainment.