Life for the observance of mitzvot

Good evening Rabbi,
I recently read the fifth notebook, and the obligation to observe the mitzvot is still not clear enough to me. The claim that the mere act of bringing a person into existence is like a parent creating a child and having a pledge in the body of the created person is problematic and raised several questions in me.

1. Does this mean that the nature of the charge is purely subjective?

It is true that a person has certain obligations or affiliations to his parents, but only to a certain extent. The rabbi gave an example of biological parents with whom a child had no contact, but this example is problematic because the nature of the connection is relatively weak, the person is not commanded to be guided and some would say bound by a ramified system of laws that concern every moment of his life. Furthermore, if the child were to feel that not only is there a disconnect but that there is a negative influence of the parent on the child, for example in parents who beat, I doubt whether the child would be obligated to the parents.
2) The Rabbi claimed in the MA that today there is no visible providence or at least it is reserved for rare cases. If there is no providence then the reason for keeping the mitzvot constitutes a loose one-way connection that some would even say abandons to the spirits of the world. How is such a connection supposed to obligate a person in such a total way?