Science analyzes what is happening. It doesn’t analyze why. Note that many mistake “causes” for a “why.” Determining a cause-effect relationship between two things is not the same as truly understanding “why” that cause-effect relationship exists.
As an example, scientists may ask, why did this ice melt? And their answer may be, because its temperature rose above 32° F. They may then ask why did its temperature rise above 32° F? And they may determine an explanation for that too. They may further question that explanation, and so on, to perhaps even hundreds of degrees of questioning. In materialist science every question asked must report an answer that is physical, as science and its language is about the content of this physical reality frame.
However, materialist science will never arrive at a real answer by speaking in physical terms. Why? Because the entire physical reality system is derived from a non-physical source. There is nothing within the physical system that can explain why the entire system itself is occurring. Science may go deeper and deeper into the rule-set of this reality, and may even identify universal physical laws and make certain wide-arching conclusions, but it will never be able to explain the entire system from within it. As an example, if science wishes to explain the origin of the universe as the Big Bang, it cannot do so without yet still being unable to explain why the Big Bang occurred. (“We don’t know why, it just is that way” is not an answer.)
The non-physical source of this physical reality is consciousness. Thus, it is only through consciousness that a comprehension of the source- the Big Why- can be attained. Fortunately, you are conscious- so you do technically have the ability to attain it.