There is a theory that upon death it is recommended not to go into the light because it is a trap used to capture souls into an unending series of incarnations. Is this true?

The reality is the opposite. The message itself, the recommendation itself is a trap. It is a disinformation campaign to render people powerless, as all power flows from the light. If you think about the fact that humans in their very origin are light beings who come from the light, which is the divine light, the source, the wellspring of everything in the universe, to deny its existence, to avoid making that contact and that connection, is a disservice of major proportions. And that itself will condemn the person, not to further incarnation, but will further narrow their experience to being trapped in limbo. They can only reincarnate by returning to the light. That is the launching pad, so to speak, for the physical incarnation. All incarnations take place with the cooperation of the light and light beings who help to establish the connections, and the conveying of energy, and to begin to prepare the biological nest, so to speak, to have the correct organismic requirements in place, the right DNA complement, and so forth. And the energetic ties to the mother, and the father, and even existing siblings, began prior to the actual engagement on a soul level, with the new life forming in the womb. So this is something that will not happen from the lower levels, the in-between plane. So what happens if someone is not prepared to return to the light, not looking upward, not looking to a reunion with the loving arms of the divine, and all they know in the large family grouping to which they belong, who are still in light being mode? They will not be prepared for their transition and may become trapped in limbo. This is not a place to be because there is extreme deprivation of all kinds. The experience can be quite difficult and quite tragic. To suggest a perspective that would trap such individuals is serving the darkness, and does not serve the human who needs to know the light is their friend, and their origin, and their birthright.