As a preface to the section containing sermons about the Holy Spirit, there is a fascinating story from her early beginnings, in fact from the early beginnings of the Pentecostal revival as such. This happened in 1908, 2 years after the Azusa Street revival began. She was a newlywed Pentecostal missionary heading for China, she was only 18 years old and had been saved and Spirit baptized for less than a year. I'll type the story from my Kindle :
While in London, England, waiting for the boat in which to embark for China, I was asked by a certain preacher one day if I could not speak to his congregation that night. Inquiring of the Lord, I felt it was His will, and told the man that I would go. That evening a beautiful limousine, with liveried attendants, called for me, and I entered with weak and self-conscious steps, crying: "Oh, Lord, do help me do Thy will tonight." On the way I gazed upon the beautiful streets and buildings, till at last the car stopped in front of an imposing and spacious edifice.
As we went up the steps and into the side door of this immense building, I remember taking a hurried glance at its size and vaguely wondering whether some small room therein was used for a mission. Great was my surprise therefore, when being led through the door and on to the platform, I found that this whole building was packed with people, and I was to speak to them at once. My attendant whispered into my ear that we were late, and then I heard the voice of the man on the platform saying: "Now our sister will speak to us and bring the message."
Before I realized it, I was standing, dazed and confused before the largest audience I had ever spoken to. The gallery, the balcony, the pit and the rostrum were all filled, and to add to my confusion, just then the footlights flashed into brilliancy all around me, and there I stood, a slip of a girl, with my Bible in my trembling hands. I had prepared no sermon, trusting God to speak through me at the moment. But not a thought came to me. Lifting my heart to God in silent prayer, I said:
"O God, if you ever helped me in my life, help me now!"
Just then something happened - The power of God went surging through my body, waves of glory and praise swept through my soul, until I forgot the throng of eager faces that had, a moment before, seemed to swim before me, forgot the footlights, and the learned men with their long-tail coats, forgot that I was only a child of eighteen, and that many there with their grey hair knew more in a moment than I in the natural course would know in a lifetime, and "I was in the Spirit"
All this takes a long time to write, but it happened in a moment, for those who put their trust in God shall never be put to shame. My mouth opened, the Lord took control of my tongue, my lips and vocal organs, and began to speak through me, not in tongues, but in English. The Spirit spoke in prophecy, and as He spoke, I did not know what the next word was to be, certainly the water did flow, not from my head but from the innermost depths of my being, without my having aught to do with it.
As I spoke thus for one hour and a quarter, there did not seem to be a stir in all that vast audience...
This account tells me a lot about how seriously people took the Pentecostal message as it was spread across the world. And God worked along with that urgency.