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Answer to the following question Jhana Explaination. I have answered it here as this is marked as a duplicate of the above question:
Question:
Can someone please SIMPLY explain the EIGHT Jhanas, specifically:
1) What are Jhanas meant to do & why would one want to achieve them?
2) How does one specifically achieve them (instructions please)?
3) What happens in each individual Jhana, from the first to the eighth?
4) How can I explain the Jhanas to a newcomer of the Dhamma?
Answer:
OP: 1) What are Jhanas meant to do & why would one want to achieve them?
Jhana factors contract each of the 5 Hindrances:
- Coarse examination (vitakka) counteracts sloth-torpor (lethargy and drowsiness)
- Precise investigation (vicāra) counteracts doubt (uncertainty)
- Well-being (pīti) counteracts ill-will (malice)
- Bliss (sukha) counteracts restlessness-worry (excitation and anxiety)
- Single-pointed attention (ekaggatā) counteracts sensory desire
Five hindrances
Jhana suppresses mental fermentation (Āsava)
With the ending of mental fermentations — he remains in the fermentation-free awareness-release & discernment-release, having directly known & realized them for himself right in the here-&-now.
Also, Jhana gives mastery over the mind so that one does not think about thoughts one does not want, essentially what are unskilful.
He thinks any thought he wants to think, and doesn't think any thought he doesn't want to think. He wills any resolve he wants to will, and doesn't will any resolve he doesn't want to will. He has attained mastery of the mind with regard to the pathways of thought.
Jhana is also meant as a pleasant abiding.
He attains — whenever he wants, without strain, without difficulty — the four jhanas that are heightened mental states, pleasant abidings in the here-&-now.
One would want to achieve them to suppress Hindrances, Mental Fermentation, achieve mastery over the mind and create a pleasant state of mind and body free from pain. Another side benefit might be special power like iddhi and abhiññā. But this rarely manifests.
OP: 2) How does one specifically achieve them (instructions please)?
See this answer.
OP: 3) What happens in each individual Jhana, from the first to the eighth?
What happen beyond the 1st few Jhana is fuzzy as fewer people has reached them and there are less descriptions of them.
1st Jhana
5 Hindrances are suppressed.
- Coarse examination (vitakka) counteracts sloth-torpor (lethargy and drowsiness)
- Precise investigation (vicāra) counteracts doubt (uncertainty)
- Well-being (pīti) counteracts ill-will (malice)
- Bliss (sukha) counteracts restlessness-worry (excitation and anxiety)
- Single-pointed attention (ekaggatā) counteracts sensory desire
Well-being (pīti) and Bliss (sukha) creates a pleasant abiding
2nd Jhana
Dropping initial application and sustained application (Vitarka-vicara) reduces the effort to stay in the Jhana. Well-being (pīti) and Bliss (sukha) becomes prominent.
3rd Jhana
As Well-being (pīti) is dropped strong vibration and swaying of the body stops. Bliss (sukha) becomes prominent which is a much more subtle vibration.
4rd Jhana
Hardly any vibrations as Bliss (sukha) has been dropped. Pleasure and pain does not arise. What remains is the focused on the object.
From the 5th Jhana onwards
5th Jhana
One transcends the perceptions of form and bodily sensations, with the disappearance the perceptions of sense-reaction, with non-attention to perceptions of diversity, aware that “Space is infinite,”
6th Jhana
One transcends the sphere of infinite space, aware that “Consciousness is infinite,”
7th Jhana
One enters and dwells in the sphere of neither-perception-nor-non-perception
8th Jhana
One transcends the sphere of nothingness, one enters and dwells in the sphere of neither-perception-nor-non-perception
OP: 4) How can I explain the Jhanas to a newcomer of the Dhamma?
This is found in this answer.