The Buddha uses the simile of an ocean to describe the six sense bases and their respective objects.

SN 35.228  Paṭhama samudda sutta - Ocean (First)

“‘Samuddo, samuddo’ti, bhikkhave, assutavā puthujjano bhāsati. Neso, bhikkhave, ariyassa vinaye samuddo. Mahā eso, bhikkhave, udakarāsi mahāudakaṇṇavo.

“Bhikkhus, the uninstructed ordinary person speaks of ‘ocean, ocean.’ Yet in the discipline of the Noble Ones, bhikkhus, that is not truly an ocean. That, bhikkhus, is merely a great mass of water, a vast expanse of water.

Cakkhu, bhikkhave, purisassa samuddo; tassa rūpamayo vego. Yo taṁ rūpamayaṁ vegaṁ sahati, ayaṁ vuccati, bhikkhave, atari cakkhusamuddaṁ saūmiṁ sāvaṭṭaṁ sagāhaṁ sarakkhasaṁ; tiṇṇo pāraṅgato thale tiṭṭhati brāhmaṇo.

The eye, bhikkhus, is the ocean of a person; its |tide::current, surge [vega]| consists of |forms::visible objects such as beautiful sights, faces, expressions, art, ornaments, possessions, status symbols, admired appearances, enticing scenery, or objects of desire and attachment [rūpe]|. Bhikkhus, one who withstands that tide consisting of forms is said to have crossed the ocean of the eye—full of waves, whirlpools, sharks, and monstrous threats. Having crossed over, gone beyond, the brahmin stands on firm ground.

Sotaṁ, bhikkhave, purisassa samuddo; tassa saddamayo vego. Yo taṁ saddamayaṁ vegaṁ sahati, ayaṁ vuccati, bhikkhave, atari sotasamuddaṁ saūmiṁ sāvaṭṭaṁ sagāhaṁ sarakkhasaṁ; tiṇṇo pāraṅgato thale tiṭṭhati brāhmaṇo.

The ear, bhikkhus, is the ocean of a person; its tide consists of |sounds::auditory experiences such as speech, music, praise, blame, ambient noise, verbal expression, or melodic tones—any sound that can stir emotion, craving for praise, aesthetic delight, or attachment to communication and identity [saddā]|. Bhikkhus, one who withstands that tide consisting of sounds is said to have crossed the ocean of the ear—full of waves, whirlpools, sharks, and monstrous threats. Having crossed over, gone beyond, the brahmin stands on firm ground.

Ghānaṁ, bhikkhave, purisassa samuddo; tassa gandhamayo vego. Yo taṁ gandhamayaṁ vegaṁ sahati, ayaṁ vuccati, bhikkhave, atari ghānasamuddaṁ saūmiṁ sāvaṭṭaṁ sagāhaṁ sarakkhasaṁ; tiṇṇo pāraṅgato thale tiṭṭhati brāhmaṇo.

The nose, bhikkhus, is the ocean of a person; its tide consists of |odors::smells and fragrances experienced through the nose, including perfumes, flowers, food aromas, earth after rain, incense, or even stench—any olfactory experience that may evoke craving, aversion, nostalgia, comfort, or sensual pleasure [gandhā]|. Bhikkhus, one who withstands that tide consisting of odors is said to have crossed the ocean of the nose—full of waves, whirlpools, sharks, and monstrous threats. Having crossed over, gone beyond, the brahmin stands on firm ground.

Jivhā, bhikkhave, purisassa samuddo; tassa rasamayo vego. Yo taṁ rasamayaṁ vegaṁ sahati, ayaṁ vuccati, bhikkhave, atari jivhāsamuddaṁ saūmiṁ sāvaṭṭaṁ sagāhaṁ sarakkhasaṁ; tiṇṇo pāraṅgato thale tiṭṭhati brāhmaṇo.

The tongue, bhikkhus, is the ocean of a person; its tide consists of |tastes::flavors experienced through the tongue such as sweetness, bitterness, sourness, saltiness, spiciness, richness, or subtle tastes like umami or astringency—any gustatory experience that can become an object of craving, indulgence, comfort, or sensory delight [rasā]|. Bhikkhus, one who withstands that tide consisting of tastes is said to have crossed the ocean of the tongue—full of waves, whirlpools, sharks, and monstrous threats. Having crossed over, gone beyond, the brahmin stands on firm ground.

Kāyo, bhikkhave, purisassa samuddo; tassa phoṭṭhabbamayo vego. Yo taṁ phoṭṭhabbamayaṁ vegaṁ sahati, ayaṁ vuccati, bhikkhave, atari kāyasamuddaṁ saūmiṁ sāvaṭṭaṁ sagāhaṁ sarakkhasaṁ; tiṇṇo pāraṅgato thale tiṭṭhati brāhmaṇo.

The body, bhikkhus, is the ocean of a person; its tide consists of|tangible objects::tangible contact such as the feel of skin, warmth, softness, intimacy, physical affection, or sensations like massage, breath, water, air, pressure—anything felt through the body that can become an object of desire, arousal, comfort, or emotional attachment [phoṭṭhabba]|. Bhikkhus, one who withstands that tide consisting of touch is said to have crossed the ocean of the body—full of waves, whirlpools, sharks, and monstrous threats. Having crossed over, gone beyond, the brahmin stands on firm ground.

Mano, bhikkhave, purisassa samuddo; tassa dhammamayo vego. Yo taṁ dhammamayaṁ vegaṁ sahati, ayaṁ vuccati, bhikkhave, atari manosamuddaṁ saūmiṁ sāvaṭṭaṁ sagāhaṁ sarakkhasaṁ; tiṇṇo pāraṅgato thale tiṭṭhati brāhmaṇo”ti.

The mind, bhikkhus, is the ocean of a person; its tide consists of |mental objects::thoughts, ideas, memories, emotions, intentions, perceptions, concepts, beliefs, mental images, or constructs—any mental phenomena that arises internally and can become an object of clinging, identity, projection, craving, or aversion [dhammā]|. Bhikkhus, one who withstands that tide consisting of mental objects is said to have crossed the ocean of the mind—full of waves, whirlpools, sharks, and monstrous threats. Having crossed over, gone beyond, the brahmin stands on firm ground.”

Idamavoca bhagavā. Idaṁ vatvāna sugato athāparaṁ etadavoca satthā:

The Blessed One said this. Having spoken thus, the Accomplished One further said this:

“Yo imaṁ samuddaṁ sagāhaṁ sarakkhasaṁ,
Saūmiṁ sāvaṭṭaṁ sabhayaṁ duttaraṁ accatari;
Sa vedagū vusitabrahmacariyo,
Lokantagū pāragatoti vuccatī”ti.

“Whoever has crossed this ocean so hard to cross,
full of waves, whirlpools, sharks, and monstrous threats;
One with perfect knowledge, who has fulfilled the |spiritual life::a life of celibacy, contemplation, and ethical discipline lived for the sake of liberation; oriented toward inner development rather than sensual pleasures [brahmacariya]|,
gone to the world’s end, is called one |who has crossed over::who has reached the far shore, epithet of an Arahant [pāragata]|.”

Qualities:

Discernment

Discernment

Clear seeing that distinguishes what is wholesome from unwholesome, true from false.

Also known as: ability to make out distinctions, ability to discriminate, distinguish, clear seeing, penetrating internal vision
Pāli: viveka, vipassanā, nipaka, niccheyya
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Sense restraint

Sense restraint

A practice of guarding the sense doors by not grasping at the general features or details of sense objects when seeing, hearing, sensing, and cognizing.

Also known as: guarding the sense faculties, watching the sense doors, not grasping at the prominent features or details of sense objects, moderation in eating
Pāli: indriya saṁvara
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Wisdom

Wisdom

Lived understanding and sound judgment that steers the mind away from suffering, distinct from mere accumulation of facts.

Also known as: (of a person) wise, astute, intelligent, learned, skilled, firm, stable, steadfast, an experiential understanding of the four noble truths
Pāli: paññā, vijjā, medhā, dhīra, paṇḍita, asammūḷha
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Last updated on May 8, 2026