[dosakkhayo]

1. The brain sends sensory signals to the manomaya kaya.
2. The signals reach the hadaya vatthu.
3. It reads the signals and make responds.

Damage to the brain alters the system in step 1.

Gati should be dealt with in step 3. Because it is a mental quality.

An Arahant does not have any defiled gati, so they will not cling to anything in step 3 despite brain damage.

However, a puthujjana might trigger different anusaya/sangati due to different sensory inputs resulting from the damage in step 1.

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