Three other Gates of Dreming!

Hi every one;)

As you know from the book " Art of Dreaming " by carlos castaneda 7 Gates of Dreaming exists but only 4 Gates has described in that book
I don't know why!Do you know why?
Please if you know the other 3 gates or you know any books,articles,web site and etc coment it here..
also if you think you can add sth to these gates from your own experience and knowledge do it.

and it is useful that I copy paste the 4 gates here from wiki:

https://en.wikipedia.org/wiki/The_Art_of_Dreaming

1st Gate of Dreaming (stabilization of the dreaming body): Arrived at when one perceives one's hands in a dream. Solved when one is able to shift the focus from the hands to another dream object and return it to the hands, all repeated a few times. Crossed when one is able to induce a state of darkness and a feeling of increased weight while falling asleep. Location in the body – in the area at the base of the V formed by pulling the big and second toes of one foot to the sides.
2nd Gate of Dreaming (utilizing the dreaming body): Arrived at when one's dream objects start changing into something else. Solved when one is able to isolate a Scout and follow it to the realm of Inorganic Beings. Crossed when one is able to fall asleep without losing consciousness. It is also referred to the activity of dreaming together with other practitioners. Location in the body – in the inside area of the calf.
3rd Gate of Dreaming (traveling): This is what is often known as an "Out of body experience". Arrived at when one dreams of looking at oneself. Solved when the dreaming and physical bodies become one. Crossed when one is able to control the dreaming body in the physical realm and move around at ease. Location in the body – at the lowest part of the spinal column.
4th Gate of Dreaming (sharing): This is the last gate explained in the book as such, and crossing it consists of being able to share the intended dream reality of other people. One has to have gathered enough strength into the dreaming body through the previous gates in order to travel to other people's dreams.