I fully acknowledge that we all are dependent on each other. This actually is mental independence as it realizes this matter of fact. Once you know things depend on each other, you can reach inner freedom. As it breaks the illusion of having to carry life all on ones own shoulders. If one thinks that he on one side must control others constantly and on the other side that he doesn't want to owe anything to anyone, this creates the biggest mental chains as the efforts in this field of tension are way too big.
To let go of control and still care speaks of the trust you mentioned.