Rasa dhātu — nutritive fluid proxy
First tissue / circulating nourishment
Rasa dhātu is rendered as the first nourishment of the seven-tissue sequence, using the chest and heart region as a visual proxy for circulation and nourishment. This is a target-organ projection of a substance classification, not an anatomical map of plasma or a claim about a fixed rasa location.
Point 1 of 7 in Dravyaguṇa — Seven Dhātu Affinity
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Caraka Saṃhitā (primary_canonical)
The dhātu teaching passages describe rasa as the first nutritive tissue or circulating nourishment; no front-view coordinate is supplied by the text.
Vasant Lad, Ayurveda: The Science of Self-Healing (secondary)
Modern teaching account of rasa dhātu as the nourishing fluid that supports subsequent tissues; the chest point is an editorial target-organ proxy.