That is a fascinating and highly specific question that delves deep into comparative epistemology. While the standard Buddhist philosophical schools generally assign perception of the external world to the five senses, there is indeed a major school of thought that explicitly posits that the mind can, through training, perceive the outer world more directly and powerfully than the sense consciousnesses.
First, to briefly address the context of your question: within the mainstream progression of Buddhist schools (other than Chittamatra), the answer is generally no.
- Vaibashika & Sautrantika: These schools are firm that the five sense consciousnesses are the exclusive gateways for perceiving external phenomena (colors, sounds, smells, etc.). The sixth mental consciousness (mano-vijñāna) works with the data provided by the senses, synthesizes it, and deals with memories and concepts. It does not have its own independent channel to the external world of sights and sounds.
- Madhyamika: This school is more concerned with deconstructing the ultimate reality of perception itself. Conventionally, they would typically accept the Sautrantika model of perception. They would not posit a special role for the sixth consciousness in perceiving an external world, as their ultimate analysis shows both the world and the perceiving mind to be empty of inherent existence.
However, the primary school of thought that directly aligns with your question is the Yoga school of Indian Philosophy, particularly as codified by Patañali in the Yoga Sūtras.
The Yoga School and Direct Mental Perception
The Yoga school provides a detailed framework for how the trained mind (citta) can develop supernormal powers, or siddhis, which are explicitly described as forms of direct perception that transcend the limitations of the five physical senses.
Here is how their system answers your question:
Perception Beyond the Senses: The Yoga Sūtras state that through the practice of samyama—the combined application of intense concentration (dhāraṇā), meditation (dhyāna), and absorption (samādhi) on an object—the yogi can gain direct knowledge of that object.
Powers of Direct Perception: Several of the siddhis described are precisely the sixth mental consciousness perceiving the outer world directly:
- Clairvoyance (Divine Sight): By performing samyama on the "light in the head," the yogi gains knowledge of things that are subtle, hidden, or distant. This is not seeing with the physical eyes, but a direct perception by the mind itself.
- Clairaudience (Divine Hearing): By performing samyama on the relationship between the ear and space (ākāśa), the yogi can hear divine or distant sounds.
- Knowledge of Other Minds: By performing samyama on the mental impressions of others, the yogi can directly know the content of another person's mind.
The Mechanism: The Yoga school posits that the physical senses are limited instruments. The mind (citta), when sufficiently calmed, concentrated, and purified, is not bound by these physical limitations. It can extend its reach and directly connect with the subtle essence of objects (tanmātras), or with objects at a distance, bypassing the normal channels of sense perception entirely.
In this view, the trained mental consciousness is not just re-processing old data from the senses. It becomes a primary organ of perception itself, and a far more powerful and subtle one than the eyes or ears. It can perceive the world "as it is" with a clarity and scope that the five senses, with their inherent physical and neurological limits, cannot match.
Other Related Traditions:
- Tantric Schools (Both Hindu and Buddhist Vajrayana): These traditions also contain numerous practices designed to awaken subtle energies and channels within the body (like the chakras and nadis). The goal of these practices is often to enable forms of non-ordinary perception where the mind directly apprehends reality without relying on the gross senses.
In conclusion, while mainstream Buddhist scholasticism generally does not support this idea, the Yoga school of Patañjali provides a comprehensive philosophical and practical framework that posits exactly what you are asking about: a system where the sixth mental consciousness can be developed to perceive the outer world far more directly and profoundly than the five sense consciousnesses.