St Theophan the Recluse: On the Seriousness of Repentance

[A]lthough we must not despair of the possibility for our conversion and salvation no matter how weak [because previously ignored] is the call for conversion to a virtuous life, we must always think timidly and fearfully of our weak condition. Might we have sunk so far that we have reached the final opportunity to receive a grace-filled awakening? Could we have barred all inroads that divine grace, ever desiring our salvation, might take to act upon us? Is this the last time that grace may be drawing nigh unto us with the aim of bringing us to our senses and putting a stop to our disgraceful condition? Thus, as weak as such a call may be, we must ever more speedily rush to make use of it with all firmness of intention, though this may require more discernment, and intensify it to the fullest extent of human freedom. Obviously, such intensification is nothing other than the opening up of ourselves to this seeking and sought-for grace. We must open up, for through our falls we have become more and more hardened and closed to grace, in first one and then another respect.

The Path to Salvation, p. 125