सोपानम् १९: एकाग्र-पद-सिद्धिः — 'भवति' सम्पूर्ण-सङ्गणक-प्रक्रिया (The Vertical Compilation Sequence)
Sopāna 19: An unbroken, vertical execution trace of a single Sanskrit word (भू + लट् ➔ भवति) across all 7 operational stations and 14 Pāṇinian sūtras from intention to finished Pada.
१. दर्शनम् — एकाग्र-पद-सिद्धिः (The Unbroken Vertical Compilation Trace)
"यथा सुवर्णं विविधैः संस्कारैः कटक-कुण्डलादि भवति, तथा धातुः प्रत्ययादिभिः पदं भवति॥"
(Mahābhāṣya Analogy: Just as raw gold transforms into a finished ornament through sequential forging, so does a root transform into a finished Pada through sequential Pāṇinian operations.)
In this Sopāna, we isolate a single word — भवति (भू + लट्, प्रथम-पुरुषः, एकवचनम्) — and trace every single internal operation executed by the Pāṇinian compiler from raw root to certified Pada.
No Arbitrary Steps
Pāṇini’s derivation is strictly deterministic. Every step produces a new well-defined intermediate state (`भू` ➔ `भू + लट्` ➔ `भू + तिप्` ➔ `भू + शप् + तिप्` ➔ `भू + अ + ति` ➔ `भो + अ + ति` ➔ `भव + ति` ➔ `भवति`).
Flags, Not Sound Filler
Marker letters (*Anubandhas*) like `श्` and `प्` in `शप्` exist solely to carry compiler instructions (triggering Sārvadhātuka and accent). Once read, they are cleanly garbage-collected via `तस्य लोपः (१.३.९)`.
अपदं न प्रयुञ्जीत
The derivation only halts when `१.४.१४ सुप्तिङन्तं पदम्` confers Pada status, ensuring no illegal naked stem enters living Sanskrit communication.