Martian telepathy is possible only between male and female. Even so, it is prevalent only among certain tribes–the Muvari being one of them. Garvey’s ability to communicate telepathically suggests a latent ability in some born of Earth.
Among the Muvari, telepathic communication is generally reserved for use between spouses, as it usually is activated only by touch with one’s partner. There are some notable exceptions to this though, as animal shamans are known to communicate and command their animals telepathically.
Lana Dire broke the intimacy taboos of the Muvari Tribe and used telepathy to communicate with Garvey, a man who, at the time, wasn’t lawfully her husband. When Garvey released her from the stasis loop in which the Warlord Shaxia had trapped her, she found that she and her savior spoke different languages and so touched him to bridge the communication gap. This enabled them to speak and flee the torrack eunuchs who were attempting to slay them.
Her second communication was inadvertent after Garvey Dire had been poisoned in his death duel with Bray Kraz. The communication, Lana knew, had been meant for her sister Ntashia, but she had picked up on it as well.
Since she was, by virtue of Clivok’s death, technically affianced to Garvey, pending the ceremony, this was no longer taboo. The first time she had communicated with Garvey she had touched him, but the second time she had merely been within close proximity.
During their marriage, this ability to communicate without touch increased, but never to the same extent as Garvey and Ntashia, who could pass thoughts at a much greater distance.