（１）This universe is constructed by our intellect.
■We perceive this world through the actions of the five senses. We see
the world with our eyes, hear the sounds with our ears, smell with our
noses, taste with our tongues, and feel with our skin. However, they are
information obtained from separate sensory organs. We can integrate visual,
auditory, olfactory, gustatory and tactile information.
■We believe that there is an objective world apart from our perception.
However, the world we perceive is a world constructed by our own "intellectual
abilities" that integrate the information of the five senses.
■This world is created not by the world outside of us, but by our inner
"intellect." Our intellectual faculties create the world as a
whole.
■We do not know what the objective world is like. What we perceive as "the
world" is the world created by our intellect. (The Function that intelligence
unites the world )
（２）How matter exists?
■On the other hand, the world, excluding the above intellectual abilities,
consists entirely of "matter". Quantum mechanics is the field
of study that explores the structure of matter.
■According to the knowledge of quantum mechanics, elementary particles
such as atoms and electrons have both particle properties and wave properties.However,
the relationship between the properties of particles and the properties
of waves is not necessarily clear.
■The Schrödinger equation is famous as a basic equation of quantum mechanics.
This equation is understood to represent the temporal variation of the
quantum existence probability. In other words, the Schrödinger equation
does not include elements that determine matter.
■Also, according to the uncertainty principle, when measuring the position
and momentum of a particle at a certain moment, if we try to measure the
position as accurately as possible, the momentum will be inaccurate, and
if we try to measure the momentum accurately, the position will be becomes
uncertain. This shows that when we make observations from a certain point
of view, we get a clear value only for that point.
■From the above considerations, from the viewpoint of quantum mechanics,
it seems that our observation (recognition) is somehow related to the existence
of matter (determination of matter).
（３）What is "reality"?
■When we observe something and react to it in some way, we can say that
the object is "real". In other words, the "existence"
of the recognition object can be confirmed by the fact that the recognition
subject recognizes it.
■Also, when we observe an object and react to it in some way, we can say
that we ourselves are “real”. That is, the "reality" of the cognition
subject is confirmed by the fact that it recognizes the cognition object.
■The above statement, after all, says that knowing the world and being
the world are one and the same. And, as I said above, whether you look
at it from the perspective of the world or from the structure of matter,
you will be led to the same conclusion.
■In addition, the recognition of the world (=the existence of the world)
is done by the whole consciousness (spirit) even after death.