Leibniz uses the term 'perception' in a technical sense and defines it as follows:

The transitory state which enfolds and represents a multiplicity in a unity, or in the simple substance, is exactly what one calls perception. One must distinguish this from apperception and from consciousness...
[Monadology, sec. 14]

So it is well to make a distinction between perception, which is the inner state of the monad representing external things, and apperception, which ...

Millions of people believe that God exists. Although they picture and describe this God in many different ways, we assume that there is only one God, one reality. Some religions, such as Hinduism, propose a world of "Gods". However, these manifestations of God are only aspects of the one God. I think it is safe to claim that God is the ultimate and unitary reality. Everything that exists is created and sustained by this reality.

Philosophers and scientists as well postulate a fundamental and unitary reality from which everything that exists originates. They name it differently, though, such a...