Is it true that a being, whether incarnate or discarnate, can only receive life force consciousness energy from Creator when in a non-negative frame of mind?

This is quite true. We cannot reward discord or difficulty. We do some extra support under certain circumstances, for example, when requested by the higher self or when a prayer has been launched to request assistance on an ongoing basis to watch over the person. We can at our discretion do some nudgings when there is a let-up or the person takes a breather in some way, and send a little more supporting energy their way to see if this will encourage a shift to the positive. But by and large this is true.