Brihaspati is DevaGuru, the spiritual Guru of the Gods. More so, He is the planet of Spirituality. Brihaspati is the God of all knowledge and intellect. So Brihaspati could bring the philosophical or logical thinking sect. But Baarhaspatya thoughts just disregard Spirituality. How is this possible?
Brihaspati created the Charvaka system to deceive the Asuras.. Here is what the seventh Prapathaka of the Maitrayaniya Upanishads says:
- Brihaspati, having become Sukra, brought forth that false knowledge for the safety of Indra and for the destruction of the Asuras. By it they show that good is evil, and that evil is good. They say that we ought to ponder on the (new) law, which upsets the Veda and the other sacred books. Therefore let no one ponder on that false knowledge: it is wrong, it is, as it were, barren. Its reward lasts only as long as the pleasure lasts, as with one who has fallen from his caste. Let that false science not be attempted, for thus it is said:
(1) Widely opposed and divergent are these two, the one known as false knowledge, the other as knowledge. I (Yama) believe Nakiketas to be possessed by a desire of knowledge; even many pleasures do not move thee.
(2) He who knows at the same time both the imperfect (sacrifice, &c.) and the perfect knowledge (of the Self), he crosses death by means of the imperfect, and obtains immortality by means of the perfect knowledge.
(3) Those who are wrapped up in the midst of imperfect knowledge, fancying themselves alone wise and learned, they wander about floundering and deceived, like the blind led by the blind.
This excerpt from the Padma Purana provides more detail, in the course of a dialogue between Shiva and Parvati:
In the age of Swayambhuva (Manu) in olden times there were great demons like Namuchi, who were very powerful, very valorous, very strong and great heroes. All of them were devoted to Vishnu, were pure, and free from all sins. They followed the practices (laid down) in the triad of the Vedas. All gods, being frustrated, led by Indra, and overcome by fear, approached Vishnu and sought his shelter.... [Vishnu told Shiva:] "There will be Brahmanas and great sages who have given themselves away to me. Approaching them through devotion for me, tell the vicious ones: Kanada, Gautama, Shakti, Upamanyu, Jaimini, Kapila, Durvasa, Mrikandu, Brihaspati, Bhargava and Jamadagnya[.] ... By your power increased in viciousness infused into them they will be vicious in a moment. There is no doubt about it.... Taking to their doctrine all the ancient demons will be averse to me in a moment." ... O sinless one, having entered through my power, Gautama and other Brahmanas I proclaimed the texts outside the Vedic fold. Resorting to this doctrine, all the wicked demons became averse to the lord (i.e. Vishnu), and were enveloped in viciousness.... On receiving from me grants of boons, they were haughty with pride of power. They were very much attached to objects of senses, and were full of lust and anger. They, void of goodness and powerless, were then defeated by the hosts of gods....
I shall tell you the various texts in a sequence. By merely remembering them even the wise ones would be deluded. First I myself proclaimed the Shaiva, Pashupata, etc. Hear about the ones proclaimed by the Brahmanas into whom my power had entered after that: Kanada proclaimed the great Vaisheshika text. Similarly Gautama (proclaimed the doctrine of) Nyaya, and Kapila proclaimed Samkhya. Dhishana (Brihaspati) in the same way (proclaimed)the much censured Charvaka. Vishnu of the form of Buddha proclaimed the false Buddhist doctrine and those of the naked and wearing dark blue garments for the destruction of demons. The doctrine of Maya is a wicked doctrine and said to be pseudo-Buddhist. I myself, in the form of a Brahmana proclaimed it in Kali (age).
Actually, No philosophy is Man created;Every philosophy is already inherently present in the nature. It just manifests according to the demand. All philosophies are describing the role of consciousness only. From Prtyabhijnahridyam of the acharya Kshemraja
The positions of the various systems of philosophy are only various roles of that (Consciousness or Self). Sutra-7
It means every philosophy manifests according to the demand. No philosophy dies nor any philosophy ever born, just appears & disappears according to demand. Demand here means consciousness. Existence of people with particular consciousness is demand in nature actually by which some particular philosophy manifest. Now, to manifest it initially a propagator is needed who is fit to propagate. Brihaspati propagated not because he actually believes the philosophy but because of demand as people with such consciousness were prevailing in that time. So philosophies are just the roles of consciousness.
From the same Shastra, The positions of the various systems of philosophy are, so to speak, roles assumed by the Self.
- The Carvakas, for instance, maintain that the Self is identical with the BODY characterised by consciousness.
- The followers of Nyaya practically consider BUDDHI to be the Self in the worldly condition. After liberation, they consider Self as identical with the void.
- The Mimamsakas also practically consider Buddhi to be the Self inasmuch as they believe the I-CONSCIOUSNESS to be the Self.
- The Buddhists also consider only the functions of BUDDHI as the Self.
- Some Vedantins regard PRANA as the Self.
- Some of the Vedantins and the Madhyamikas regard 'NON-BEING' as the fundamental principle.
- The followers of Pancaratra believe Vasudeva to be the highest cause.
- The followers of Sankhya practically accept the position of the Vijnanakalas.
- Some Vedantins accept ISVARA as the highest principle.
- The Grammarians consider PASYANTI or SADASIVA to be the highest reality.
- The Tantrikas consider the ATMAN as transcending the universe to be the highest principle.
- The Kaulas consider the UNIVERSE as the Atman principle.
- The followers of Trika philosophy maintain that the ATMAN is both immanent and transcendent.