Lashunta and Symbiosis

I would like to discuss something that multiple Lashunta sources have touched on, but never examined in depth: the impact of symbiosis on Lashunta and their society. The most famous example within the Pathfinder canon is, of course, the Damaya bond with their Shotalashu lizard-mounts. Yet I see no reason for it to stop there. I would propose that telepathic symbiosis has affected Lashunta culture more pervasively, and possibly even their evolution.
While the universal adoption of Damaya-Shotalashu bonding may be unique in these two species melding so successfully, for a skilled Lashunta Psychic (say, with the Symbiosis discipline, in game terms), communication and control with other animals is easily possible. Indeed, this practice may be the Lashunta’s main countermeasure for dealing with the giant Qoelu Megafauna that roam much of the planet’s landscape: convincing these great creatures not to trample the Lashunta’s farms and cities with Godzilla-like recklessness, while also encouraging Lashunta civilization to grow away from competing resource-vectors. More banally, this kind of animal symbiosis can have huge value in taming animals for freight or work, much like how elephants even on our world are trained in some Asian countries. While more demanding in training and effort than Shotalashu, the value in this expanded animal-symbiosis could be tremendous.
Yet I have a thought to take Lashunta symbiosis with other kinds of life to an even more elemental level. To do so, I would like to develop an idea taken from the Starfinder canon, where, in Paizo’s Starfinder: Pact Worlds sourcebook, the Lashunta of the city of Jabask are mentioned as living symbiotically with the Somana Tree-Sages, including the Prophet of the Wood. Out of respect for canon, I will let the Somana continue as specific to Jabask’s geographic environs. Yet I see no reason why they cannot have a related cousin-species, possibly not so intellectually advanced, but sharing in many of the psychic abilities that make it possible to communicate with animals dwelling in and around the tree, including Lashunta.
The Eazue, or Castrovellian Milk-Tree, is a cornerstone of Lashunta culture in Western Asana, and key to rural life. It grows naturally as part of the Deepwood’s interdependent ecology, reaching 700 feet in height. In its natural state, it produces teat-wort fruits full of the tree’s natural milk-sap, which attract a multitude of animals who partake (including the tree’s micro-sized seeds, which the imbibers transport to new parts of the forest). Yet what makes the Eazue unique is it has evolved the ability to assess its teat-drinkers’ intentions and determine whether it wishes to cultivate their presence or discourage them.
The tree has the ability to telepathically assess whether a given animal’s presence and actions are a threat or boon to the tree’s welfare. In the presence of creatures the tree perceives as a threat, its teat-worts dry out, and no more milksap is produced until the creature leaves. If a creature is deemed helpful by the tree, it would continue to produce milksap to encourage the creature to stay, presumably that such a creature may discourage more hostile animals from meddling with the tree. So is the case with the Lashunta, who will gladly protect a Milk-tree from anything that can harm it, while harvesting the rich milk-sap, even from spirling into the bark, and will even build their homes within the great tree’s limbs - thus making it a Home-Tree.
As part the of Eazu’s telepathy, the tree will capture psychic resonances from its member-dwellers, thus allowing extended psychic communication within the tree’s influence. Here the normal 20ft range-limit to Lashunta telepathy no longer applies. Furthermore, longtime dwellers will have an analog of their mind captured within the tree’s resonances, leading Lashunta to believe that the spirits of their ancestors continue to dwell within the Hometree long after death. Skilled Lashunta symbiant-priests can even pick specific memories from the tree’s psyche, which depending on the tree’s age, can go back hundreds or even thousands of years.
While the trees do not exhibit direct intelligence, over millennia, and given sufficient exposure to Lashunta minds and personalities, a sufficiently advanced Home-Tree - now called a Soul-Tree while develop what is called an Overmind: an amalgam of multiple mind-resonances, which begin to show independent thought. In this case, the Overmind does not think of itself as a tree, but identifies with the multiple Lashunta whose thoughts and memories fuel its development. Where an Eazu shows an Overmind, priests will be dedicated to the Soul-Tree’s care and to assist with developing its consciousness.
All Lashunta cities cultivate an Eazu, believed to capture the city’s spirit and consciousness. The city of Son claims that its Soul-Tree’s Overmind can call forth memories from 24,000 years ago, at the city’s founding.