Called by many names, the ancient practice of glossalalia / speaking in tongues / light language can open portals of consciousness that directly connect us to:
the natural and spirit worlds
the natural ability to heal ourselves and others -- mentally, physically, emotionally, and spiritually
the multidimensional continuum of time -- past, present, future
expanded and fluid ways of thinking and being in the world
Whether by design or accident (and most probably a bit of both), the fixing/solidification of written language seems to correlate with the rigid-ification of human consciousness. Here I credit phenomenologists and philosophers including Husserl, Merleau-Ponty, and Saussure as well as the more contemporary David Abram (in his highly recommended book The Spell of the Sensuous: Perception and Language in a More-Than-Human World ).
In bypassing human-constructed, written language, light language can activate and give voice to layers of consciousness that typically have no voice. Consider what the phrase "having no voice" means -- having no agency, presence, embodied uniqueness. Absolutely the written word can offer powerful and beautiful gifts. When taken as the default method of perceiving and interacting with the world, it can also imprison us in stagnant, corporatized, and extraordinarily limited and potentially destructive modes of consciousness, thought, and presence.
Through more than 20 years of research I have developed a practice of consciousness expansion through light language. I have found that in its simplest form light language affords an immediate connection between my thoughts, intentions, and the natural and spirit worlds that is not tethered to/by the mediation of constructed language. In my own practice I have experienced this light language as beneficial to mental, emotional, physical, and spiritual health. It has aided in deepening my relationship with the plant and animal worlds and has greatly aided in my creative work.