Overview
To completely shatter the illusion of a unified “self” or “soul,” the Buddha broke down the entirety of existence—both physical and mental, internal and external—into eighteen ultimate Elements (Dhātu). Everything that can possibly be experienced in the universe is simply the interaction of these eighteen irreducible, conditioned realities.
The List
The 6 Sense Organs (Internal):
- Cakkhudhātu - Eye element
- Sotadhātu - Ear element
- Ghānadhātu - Nose element
- Jivhādhātu - Tongue element
- Kāyadhātu - Body element
- Manodhātu - Mind element (The cognitive faculty)
The 6 Sense Objects (External):
- Rūpadhātu - Visible form element
- Saddadhātu - Sound element
- Gandhadhātu - Odor element
- Rasadhātu - Taste element
- Phoṭṭhabbadhātu - Tangible element
- Dhammadhātu - Mental object element
The 6 Classes of Consciousness (Resultant):
- Cakkhuviññāṇadhātu - Eye-consciousness element
- Sotaviññāṇadhātu - Ear-consciousness element
- Ghānaviññāṇadhātu - Nose-consciousness element
- Jivhāviññāṇadhātu - Tongue-consciousness element
- Kāyaviññāṇadhātu - Body-consciousness element
- Manoviññāṇadhātu - Mind-consciousness element
Textual References
- Canonical: Dhātu Saṃyutta (SN 14) – The Buddha explains how these elements interact based on causes and conditions, proving they are devoid of a self.
- Abhidhamma: Vibhaṅga – Extensively analyzes the precise nature of these 18 elements.