As far as the philosophical aspect of Samudra Manthan I have got 2 examples.
Birth of Lord Vishnu.:
33-38. Śiva thought within Himself like this—“Another being shall be created by me. Let him create everything, protect it and in the end let him dissolve it with my blessing. Having entrusted everything to him we two, remaining in Kāśī shall roam as we please keeping only the prerogative of conferring salvation. We can stay happily in this blissful forest being free from worries (of creation). With the consent of Śiva the supreme lord spread the liquorine essence of nectar on His left side, on the tenth limb, nectar which was the outcome of churning the ocean of His mind wherein Thoughts were the waves, the Sattva Guṇa was the precious gem, Rajas being coral and Tamas—crocodile. Thereupon a person (Vishnu) came into being who was the most charming one in the three worlds, who was calm with Sattva Guṇa being prominent, and who appeared to be the ocean of immeasurable majesty. (Sri Shiva Purana 2.1:6:33-38).
Birth of Nishada.:
43: After making a decision, the saintly persons and sages churned the thighs of the dead body of King Vena with great force and according to a specific method. As a result of this churning, a dwarflike person was born from King Vena’s body.
46: After his [Niṣāda’s] birth, he immediately took charge of all the resultant actions of King Vena’s sinful activities. As such, this Naiṣāda class are always engaged in sinful activities like stealing, plundering and hunting. Consequently they are only allowed to live in the hills and forests. (Srimad Krishna Bhagwatam 4:14:43&46).
So, here Nishada took the Visha (Sins).
Birth of Prithu.:
1: The great sage Maitreya continued: My dear Vidura, thus the brāhmaṇas and the great sages again churned the two arms of King Vena’s dead body. As a result a male (Prithu) and female (Arci) couple came out of his arms. (Srimad Krishna Bhagwatam 4:15:1).
So, Samudra Manthan is nothing but Atma Manthan or self churning.
Where manas (moon) is the sea as moon (soma) is also the nectar and from manas only impurities are born. As mind is difficult to control. And then our thoughts are waves, Satva is gem, rajas is coral, tamas is crocodile.
So,from greed (rajas) to riches (sri) manthan started, then with hard work (manthan) satva is gems are found. But though its satva its still materialistic happiness. So tamas comes which is the fear of losing the weath. After tamas comes Kāla Kuta (poison) negative thoughts. Kāla means death and kuta means puzzle. Those who remains attached to the materialistic world remain trapped in the cycle of life-death-rebirth. Those who solve the puzzle and detatch themselves from materialistic world. They get the nectar of knowledge to immorality or moksha. Now, those who gets the knowledge of Brahman (Amrita) becomes immortal (suras) and those who don't, they remain under the influence of maya (mohini) and remains mortals (asuras). As, according to the vedas all are asuras only.
So, 1st Brahma (Rajas), 2nd Vishnu (Satva) and 3rd Rudra (Tamas), then destruction and after according to the karma its decided its moksha or rebirth. Its like in kundalini yoga where kundalini 1st pierces Brahma granthi, then Vishnu granthi and then Rudra granthi and finally reached to Sahasrara, the city of Brahman where the yogi gets immortal. As described by me in this and this answers of mine respectively. Here, the mount meru is our spine (meru-danda) and the serpent is our Kundalini Shakti.
Maitreya Upanishad.:
“deho devaalayaH proktaH sa jiivaH kevalaH shivaH .
tyajedaj~naananirmaalya.n so.ahaMbhaavena puujayet.h |” (Maitreyi Upanishad II:1).
“The body is said to be the temple; the individual Self (Jivatman) is Shiva alone. One should discard the faded flowers in the form of spiritual ignorance and worship Lord Bhava (with the conviction that) ‘He and I are one’.”
Kaivalya Upanishad.:
“umaasahaayaM parameshvaraM prabhuM trilochanaM niilakaNThaM prashaantam.h | dhyaatvaa munirgachchhati bhuutayoniM samastasaakShiM tamasaH parastaat.h |” (Kaivalya Upanishad 7) sa eva sarvaM yadbhuutaM yachcha bhavyaM sanaatanam.h | j~naatvaa taM mR^ityumatyeti naanyaH panthaa vimuktaye | (Kaivalya Upanishad 9).
“Meditating on the highest Lord, allied to Uma, powerful, three-eyed, blue-necked, and tranquil, the holy man reaches Him (Shiva) who is the source of all, the witness of all and is beyond darkness (i.e. Avidya). He alone is all that was, and all that will be, the Eternal; knowing Him, one transcends death; there is no other way to freedom”.
I hope this clarifies all your queries. Prd..