This is an excerpt from the book Tuning In: A Journalist, 6 Trance Channelers and Messages From the Other Side

What is a lightworker

An individual who simply remembers that they are connected to spirit and can consciously allow higher vibratory energies to be brought or channeled through the body for positive effects. For positive applications on the Earth. Many children being born on your planet now are automatic, natural lightworkers because they are really not forgetting as much of who they are as spirits. Not forgetting the connection, not forgetting what they have access to. And they will exemplify this on your planet more and more every day as they grow.

Aren't most children like that?

In some senses, but now more than ever. Many of the children that have been born on your planet within the last fifteen years are not only a new generation – they are literally genetically a new species, and actually have greater genetic capacity to access higher levels of energy. They are better antennas, better receivers physiologically, so to speak. So yes, children have always generally had that capacity and they get learned out of it, shall we say. Taught out of it, generally by the age of three. Definitely by the age of seven in your reality. But now not so much anymore. They are coming through with what you would call core fortification, and having this core of their being fortified by certain energetic frequencies, they are less prone to absorb the telepathic onslaught of negative belief systems from the rest of society. They simply won't participate in those beliefs.