But the consciousness is changing constantly. At least if we're talking about what we're conscious about and to what level we're conscious about things. Your memory changes too because of continuous experience, and your consciousness (as a focus of things) goes in and out and only highlight one or few things at a time, hence we have things like "change blindness" and such.
Besides, doesn't meditation alter consciousness?
I will try to explain Buddhist views so you can relate it to your views and see if there is similarities, it is often hard to explain in a forum in words.
There is the awareness, consciousness and perceived mind, Mind is often not used because it's western concept is dependent on brain. . and the in conditioned existence where the brain is a receiver the radio signal to
conscious.
Some aspects are affected and cause change as a result, some factors do not, so it isn't as simple as yes and no
In translating to western words there is a lack or words that reflect some aspects.
What the Buddha said:
We have the Five aggregates which are:
1.
Physical form, the body and all material objects including sense organs ; the sensations or the feelings.
2. One’s emotional response to the phenomena by way of desires anions in which the five senses and mind are involved;
3. Perception or recognition of physical and mental objects
4. Impulses, mental formulations or fabrications – these include volition and attention , the faculty of will , the force of habits etc.
5. The faculty of vijnana the
awareness or consciousness, which encompasses mental events and what is generally called sub-conscious in the West. This is not easily explained at times and you can write a chapter on it alone.
All the five aggregates are empty of self nature, in the sense they are dependent on causes and conditions
What the Buddha said in regards to it and changing state:
In scheme of things, consciousness too is conditioned and arises out of interaction with the other factors-(physical or mental) .
The consciousness in turn influences one or more mental factors. Thus consciousness and the mind-body are interdependent; there is no arising of consciousness without conditions.
These form the chain of cause and effect (karmic).Yet, though consciousness and matter do contribute towards the origination of each other, one cannot become the substantial cause of the other
Buddhist teachers suggest that through careful observation, it is possible to see consciousness as being a sequence of conscious moments rather as a continuum of awareness. Each moment is an experience of an individual mind-state: a thought, a memory, a feeling, a perception.
A mind-state arises, exists and, being impermanent, ceases following which the next mind-state arises. Thus the consciousness of a sentient being can be seen as a continuous series of birth and death of these mind-states. In this context rebirth is simply the persistence of this process.
Consciousness is said to act like a life force which runs through the process and through life after life. But,
consciousness is subject to change every movement and influenced by the aspects of one’s life. You are not transforming the conscious state at death as much as the consciousness is transforming you as your true state becomes more aware.
It is explained that one’s vocational actions produce karmas which influence the consciousness in a certain manner and determine ones rebirth. It is said, the five skandhas continue on, powered by past karma, propelling births and rebirths. Here, Karma in essence is not action so much, but rather the state of mind of the person performing the action.
The problem with such bad Karma is that it molds our personality, creates ruts or habitual patterns of thinking and feeling. These patterns in turn influence our present and future lives.
A major aim of Buddhism is to become aware of this process, (meditation one such tool) and then to eliminate it by eradicating its causes.
This core teaching can go on in far more detail in the Buddhist point of view, much has to do in reflection from the brahman point of view, to the teachings of the Buddha and how he came to see it.
However all of us still have the Buddha nature within the consciousness, essentially we need to clean away the layers of clouded aspects for it to be clear.
Back to topic what came before the big bang. That will always be based on concepts, theories, and other observations. Some believe the universe expanded but will also contract, then repeat. The energies and aspects repeating itself.
(Note in translation MIND is not often used with Buddhism but in western explanations it is substituted, and may be confused with mind as related to brain. They are not the same.