The 6 Internal Sense Bases

Overview

In Buddhist psychology, there is no central “soul” acting as an observer. Instead, the organism interacts with the world through six distinct cognitive doors. The Six Internal Sense Bases (Ajjhattikāyatana) represent the subjective physical and mental organs that process experience. The mind is considered a sense door just like the eye.

The List

1. Cakkhāyatana - The Eye Base: The sensitive physical organ of sight.
2. Sotāyatana - The Ear Base: The sensitive physical organ of hearing.
3. Ghānāyatana - The Nose Base: The sensitive physical organ of smelling.
4. Jivhāyatana - The Tongue Base: The sensitive physical organ of tasting.
5. Kāyāyatana - The Body Base: The sensitive physical organ of touch (distributed throughout the organism).
6. Manāyatana - The Mind Base: The cognitive faculty that cognizes ideas, thoughts, and memories, and coordinates the inputs from the other five doors.

Textual References

• Canonical: Salāyatana Saṃyutta (SN 35) – Hundreds of discourses detailing how these six bases are impermanent, suffering, and non-self, and must be guarded.