Although the concept of giving in exchange is often associated with unpleasant situations, in fact we operate in such a way every day of our lives; give and take. In the primitive societies the exchanges were in kind, but in the historical period to date, we use common currencies for our exchanges and transactions. In any case, you cannot get something without giving something else in return; you cannot get a salary if you do not offer work.
And while this is the everyday life for all of us, there is no such thing in the life of faith. Because the only one who does not have needs is our Creator and we have nothing to offer him. All that remains is the exercise and application of faith, not in order to give something but to educate ourselves, and this education and experience is the foundational stone that fills our lives not only with the necessary goods but also with goods far beyond them, temporally and locally.
Because our Creator not only does not have needs, that He has to satisfy but He has predicted and prepared treasures and awaits those interested and capable to acquire them. And the treasures of the Creator never diminish, nor end nor become old, but they are always up to date and precious.