Sorry Ankush, I do not understand your question, and I am not sure that you understand it either.

Be very careful of asking any question beginning with "why". Often such a question makes no sense. Suppose my child asks me: "What is that?" I reply: "That is a cow." My child asks: "Why?"

If you find that you want to ask a scientific question that begins "Why..." then first ask yourself what sort of answer would satisfy you, or at least help you.  Think of the cow question; what sort of answer would be helpful? "Because it is." "Because I say so." "Because there are many cows round here and I know it is not a fly." "Because Elvis is dead."

The only meaningful view I can see to your question is that it is more of a remark. You say, if I understand you, something like: "Everything has a cause and everything has an effect and nearly everything affects nearly everything else. What is more, the kind of way any one thing can change another thing is special; a drop of water is likely either to pop a bubble or wet it so that it does not pop, or it could cause a steel hammer to rust, but it will not pop or rust a cow, nor stop her from popping. This means that if we change anything whatever, then we change other things.  How does it come that this is so?"

Was that what you had in mind? If so, I can say no more than that that seems to be how the universe works. We live in a universe in which things behave fairly consistently by the laws of probability, logic, mathematics, and energy. I cannot imagine a universe in which that would not be so. If things were otherwise, I am not sure how it would be a universe.

If that does not help you, please ask again, but if you can, try to imagine what sort of answer would be helpful.