I've been watching a few more Ancient Aliens programmes. (See here for a previous post on the subject.) The series gives an interesting overview of ancient history, mythology and sacred sites as well as more modern unexplained phenomena and events, and even if you don't go along with its underlying premise and see everything through the same unvarying prism it does, it still raises many thought-provoking questions about our past. Its main fault for me is that it materialises spirituality by reducing all supernatural things to extraterrestrial intervention. The higher spiritual is brought down to the level of the technological so, although the contributors think they are breaking into new ways of seeing and understanding the universe and consciousness, they are actually just transferring the contemporary world view, basically a secular one, to the spiritual plane. We need to see the spiritual in terms of the spiritual not in our own terms.
The most recent programme I saw was about shamans and how they might be tuning their minds and bodies to other dimensions of being where they encounter intelligent life forms, inevitably in the context of this series interpreted as extraterrestrials. The techniques used include dance, rhythm and drugs derived from various plants. I don't doubt that shamans do indeed enter into otherworldly realms of being and supernatural states of consciousness but I would caution against regarding all these as spiritual. One of the most important lessons to be learned on the spiritual path is that between the purely physical world and the real spiritual there is a vast area of being in which live all kinds of creatures, some highly intelligent, some non-human. This psychic or astral world may seem a spiritual world because it is a non-material one but it is not where God and pure truth are to be found. It is an intermediate domain between Heaven and Earth and you will find good and evil there just as you do here but you will not find Christ though you may well find beings imitating him or masquerading as him or even thinking they are the equivalent to him. If shamans really did have access to the spiritual they would be much more than they are which is a curious mixture of the psychically powerful healer and the everyday human with all the virtues and vices of the everyday human. Shamans are magicians not saints.