The work can be, at times, quite technical, but that doesn't stop it from being well worth the time of even a beginner.
Touching on overall themes of Providence, Discretion, Prayer, and Obedience, St. Catherine shares the sorts of thoughts and revelations only gleaned through long hours contemplating eternal truths.
"[N]ot all the pains that are given to men in this life are given as punishments, but as corrections..." (p. 4)
"No virtue...can have life in itself except through charity, and humility..." (p. 5)
"For this reason (if the soul elect to love Me) she should elect to endure pains for Me in whatever mode or circumstance I may send them to her." (p. 9)
"I could easily have created men possessed of all that they should need both for body and soul, but I wish that one should have need of the other, and that they should be My ministers to administer the graces and the gifts that they have received from me." (p. 15)
(regarding impurity) "Neither does any sin, abominable as it may be, take away the light of the intellect from man, so much as does this one." (p. 47)
"But if the soul have light to know and grieve for her fault, not on account of the pain of Hell that follows upon it, but on account of pain at her offense against Me, who am Supreme and Eternal Good, still she can find mercy." (p. 53)
(regarding the damned) "They will be reproached by the Blood that was shed for them, and by the works of mercy, spiritual and temporal, which I did for them by means of My Son, and which they should have done for their neighbor, as is contained in the Holy Gospel." (p. 61)
(regarding the devil) "And I have set him in this life to tempt and molest My creatures, not for My creatures to be conquered, but that they may conquer, proving their virtue, and receive from Me the glory of victory." (p. 63)
"Knowest thou what is the special good of the blessed ones? It is having their desire filled with what they desire." (p. 67)
"Time is as the point of a needle and no more..." (p. 69)
"They have arisen with servile fear from the vomit of mortal sin, but, if they do not arise with love of virtue, servile fear alone is not sufficient to give eternal life." (p. 77)
"[Y]ou cannot repay the love which I require of you, and I have placed you in the midst of your fellows, that you may do to them that which you cannot do to Me, that is to say, that you may love your neighbor of free grace, without expecting any return from him, and what you do to him, I count as done to me." (p. 88)
"My Lord, what does Thou wish me to do? Show me that which it is Thy pleasure for me to do, and I will do it." (p. 105)
"And inasmuch as the root of self-love is corrupt, everything tht grows from it is corrupt also." (p. 118)
"[T]he tongue is made only to give honor to Me, and to confess sins, and to be used in love of virtue, and for the salvation of the neighbor." (p. 120)
"[Y]our sins consist in nothing else than in loving that which I hate, and in hating that which I love." (p. 125)
"[T]he closer the soul is to Me, the purer she becomes, and the further she is from Me, the more does her purity leave her." (p. 131)
"[T]he fire of Thy love ought not and cannot refrain from opening to him who knocks with perseverance." (p. 168)