As this shabbat's parasha is Vayeshev with, amongst other topics, the selling of Joseph by his brothers into slavery, the question arises: What exactly went on at the time? Who did the brothers sell him to, and who sold him to Potiphar?
"And they sat down to eat bread; and they lifted up their...
So.
First you need to have a general idea of Astral Projection/Travel. If you do not - go have a play.
Mary & Joseph were Twin Flames, when you are twin flames you can easily Astral Project together.
I believe they fornicated in the Astral realm, not physically, this is how it is a Virgin...