When you observe a mental object (a certain emotion, a certain thought, a sensation, etc.), after some time, the observed object dissolves into a dimensionless point.

It happens after you peel from the object the outer circumstances, you isolate it from its name and titles, from the context, the excuses, the "why it happened", the "who caused it" etc. At this stage, your observation focuses on the pure internal energy of this mental object and then instantly it shrinks into a point. Try it by yourself and see.

When you hold on to this reduced point, you will see that you cannot tell where the point is located, not even in which space or dimension, actually the word "point" is only an approximation to this dimensionless zero-content entity. It can better described as the minimal representation possible to be still perceived by your mental faculties.

If you are alert at this point, you will find out that actually the observer-observed duality ceases to exist, the gap separating the observer from the observed collapses - in this dimensionless point, you, the observer, and the observed object are united into one point, you are one.

Don't just read this, try it by yourself and see if it is true. It is so easy to do it. Just do it at ease, no expectations, no effort. Pick a certain emotion, sensation, or thought that are currently present in your space of awareness and observe it. Peel from this mental object the outer circumstances (what in the external world caused it, when, your reaction, the name attached to it etc.) and focus solely on the reduced mental object, on the reduced energy, on its very essence. From now on, you don't need to do anything, at some point you will be left with this dimensionless point and then get united, subject-object, in the point.

Soon after, this dimensionless point will also disappear. Let it go.

After doing it over and over again with different mental objects, you will find out that all these reduced points are actually the same identical universal point and that this one point encompasses your very basic being.

This method naturally helps in dissolving mental issues. But its more fundamental power is in its ability to transcend you into a very important state: being in this universal point is the state of "I AM", is being without identification, is the pure "you" prior to extending the "I" to "I am this or that".