The virtuous soul that is alone and without a master, is like a lone burning coal; it will grow colder rather than hotter. Those who fall alone remai… - John of the Cross

Hence, when by continual mortification the four passions of the soul are calmed, that is, joy, grief, hope, and fear, when the natural desires are lulled to sleep in our sensual nature by persistent aridities, when the senses and the interior powers of the soul cease to be active, and meditation no longer pursued, as has been already said,12 which is the household of the lower part of the soul, then the liberty of the spirit is unassailable by these enemies and the house remains calm and tranquil as the words that follow show.

we assert that when a rock is in the ground it is, after a fashion, in its center, even though it is not in its deepest center, for it is within the sphere of its center, activity, and movement; yet we do not assert that it has reached its deepest center, which is the middle of the earth. Thus the rock always possesses the power, strength, and inclination to go deeper and reach the ultimate and deepest center; and this it would do if the hindrance were removed. When once it arrives and no longer has any power or inclination toward further movement, we declare that it is in its deepest center. 12. The soul's center is God. When it has reached God with all the capacity of its being and the strength of its operation and inclination, it will have attained its final and deepest center in God, it will know, love, and enjoy God with all its might. When it has not reached this point (as happens in this mortal life, in which the soul cannot reach God with all its strength, even though in its center - which is God through grace and his self-communication to it), it still has movement and strength for advancing further and is not satisfied. Although it is in its center, it is not yet in its deepest center, for it can go deeper in God.

love is the inclination, strength, and power for the soul in making its way to God, for love unites it with God. The more degrees of love it has, the more deeply it enters into God and centers itself in him.