So yes it’s right what is known about entities in various dreamtime situations. Like the shaman bound to a body go into a dream with DMT support to talk with his ancestors and counselors, the freed shaman project itself into dreams to care and support. Dreamtime is the meeting point, the other is direct telepathy if smaller amounts of DMT are present.
Shamans within body are known to have more pineal gland DMT for such contact, these was also figured out by established religions who want to be body the people worship. So they chased and burned the shamans and witches with such contact down, to destroy their rival. To place the clear message, that life ends with death and everything within dreams is illusion. In today industrial sink hole, you can see the result of such manipulation and influence to keep prime creator away from the humans. All of that is related to the peoples path of creation and free choice.