Civilized peoples, the world over, on Orea travel from far and wide to visit (and HOPE for an audience within) the Blue [Crystal] Tower. They send gifts and emissaries to pose questions that might sway or save (or destroy) the fates of important persons or an entire people, even the world itself, for answers from the Oracles of Andril.
The counsel of a green-cloaked and clad initiate from the pseudo-religious Order of the Emerald Tear, with their teardrop-shaped sparkling green gemstones adorning robes and brow, is often unsolicited but always highly prized for its ability to pierce the hearts of men or see into the future itself. Neither hero, king nor villain would dare not heed one of the emerald seers. Agents of the Emerald Tear scour the world, seeking to bring all psychic individuals into their ranks for training and growth, and in no small way, their own continued safety.
The god of knowledge, history, inspiration and such pursuits as language and writing, the Scribe of the Gods, Sorilorr the All-Knowing, is cosmologically represented by Orea's secondary, smaller and green, moon. It is said, from his Infinity Archive upon that celestial body, when the moon is new, Sorilorr weeps (accounts of the cause or source of this sorrow are legion). When his divine tears fall to the realms and land upon a mortal, their mind is opened, in part, with the infinity of knowledge of the All-Knowing. Thus are psychic individuals born to Orea.
For those who fail to undergo the rigorous training, simply do not have the patience or temperament to achieve full control of their minds, or are driven by selfish or destructive aims, the Scarlet Shard welcomes you to its powerful ranks (sometimes referred to as "Wildminds" by those who deal in psychic-related circles).
The Mage-princes of R'Hath are highly curious, even perplexed, and some obsessed with the pursuit and study of the mental powers of psychically awakened beings. Kidnappings and cruel experimentation on unfortunates is not unheard of in a quest to comprehend and (more likely) control this strange "personal magic" that does not use "spells" most wizards do not (and will never) possess.
Of course, there are those who fall prey to the superstitions and fears of normal men, accused of demonic possession (How else does someone with no training in wizardry or witchcraft possess such power?) or other hideous untruths, imprisoned, beaten, and worse out of a lack of understanding -as much their own as their condemners- of the significant and marvelous wonders of their minds. Those that flee might be found by the Emerald Tear or some other beneficent teacher (a monk or other contemplative, enlightened hermit or compassion wizard with an understanding -however cursory- centering the mind, etc...) who can calm their fears and steady their focus to produce some degree of control and usefulness out of their powers.
It was long supposed, and now known, by the sages that the winged men called the Zepharim, are in fact, a telepathic race amongst their own kind. Though it seems they possess no capacity for mental communications or the reading of others' minds unless that individual is, themselves, also psychically awakened and aware.
To date, it seems on Orea only humans, elves of high enlightenment or noble descent, and half-elves (and the aforementioned Zephari) possess the capacity for such an awakened mind. Though many other [non-PC] creatures and beings to be found throughout the World of Orea and the planar beyond are also so-gifted.
Yes. I want [and have] psychics in my D&D. Always have. Always will.
Still won't call them "psionics" as I do not possess, in my campaign setting, the technological advancements or sci-fi devices that produce them.