I will explain both 4th Dimension and density a little more to you. There are some things I do not try and explain due to the extreme language barrier in the world of the physical and the world of the spiritual. You see some things have no words in our world, it is just feeling that we communicate with, and feeling can go beyond any word in your world. Your world is all about words.
I will ask you this, "Do you feel in your world that humanity has gone beyond the ego?” I would say No to that question. Another question, "Do you see that development of superego, or higher awareness, has taken over humanity? This would be called integration on a spiritual level.
I see humanity moving now into the 4th Density. Density denotes a vibrational frequency and NOT a location.
You see, I use Density as describing one's perception of orientation in relation to other realities. When I speak of dimensions, I am referring to a location in space/time rather than a person's vibrational frequency.
I will tell you this, Dear Ones, and this tidbit of information is good to know. MANY humans upon the Earth plane choose to retain third-density consciousness orientation of ego throughout their entire lives.
The development of higher consciousness is the fourth-density trait. And the humans have the option to develop this aspect of themselves. You see, the Earth is in the 4th dimension now. So, on your Earth right now fourth-density reality is overlapping third. In humanity's case, this can account for the increase desire for Unity, Peace, and Unconditional Love, as opposed to the illusion of separation that characterizes third density. So, the vibratory rate of one's reality is stepped up, and therefore, one may be faced with personal issues in a much more rapid and intense way. (You must be seeing this happen).
It is easy to see how this is in play right now with the thousands upon thousands of humans upon the earth who are in therapy, in substance-abuse programs, and engaging in humanistic efforts to better the planet. I will tell you; this is the frequency of Responsibility.