Baker begins by affirming the reliability of visions as a means of divine revelation, citing both Old and New Testament prophets who received messages from God through visions. He argues that such experiences are not limited to biblical times but are promised to continue throughout the Church Age, referencing Acts 2:17-18: "In the last days... your young men shall see visions, and your old men shall dream dreams."
He recounts the extraordinary outpouring of the Holy Spirit upon Chinese orphan children under his care, who, with no prior knowledge, experienced detailed visions of heaven. These accounts, corroborated by similar experiences worldwide, convinced Baker of their authenticity and divine origin.

Heaven is described as a real, tangible realm, not a vague or abstract state. At its center is the New Jerusalem, the "city of God," situated in the Third Heaven. This city is depicted as a place of unimaginable beauty and order, constructed of precious stones, with streets of gold and radiant light emanating from the throne of God and the Lamb. The city is said to be fifteen hundred miles in length, width, and height, though Baker notes that heavenly measurements may transcend earthly comprehension.
Paradise, or the Garden of God, is located within the New Jerusalem, featuring the river of life, the tree of life bearing twelve kinds of fruit, and expansive parks and plains. These parks, filled with flowers, animals, and birds, are described as surpassing any earthly beauty. The New Jerusalem itself is organized as a series of ascending paradisiacal plains, each more glorious than the last, culminating in the highest plain where the throne of God resides.

Baker emphasizes that the New Jerusalem is not of a material order but a spiritual reality. All its inhabitants, structures, and even nature itself are of a refined, spiritual substance. He draws parallels to the resurrected body of Jesus, which could transcend physical limitations yet remained real and tangible. In this city, saints possess spiritual bodies, free from corruption and decay, and enjoy a life far surpassing anything known on earth.
The city is also the eternal home for all the redeemed-saints from both the Old and New Testaments, united as one family in Christ. Baker cites Hebrews 12:22-23: "But you have come to Mount Zion, to the city of the living God, the heavenly Jerusalem... to the spirits of the righteous made perfect."

Angels are presented as real, personal beings who serve both in heaven and on earth. In heaven, they worship God, minister to the saints, and participate in the harmonious life of the New Jerusalem. On earth, angels are depicted as protectors, guides, and messengers, actively involved in the lives of believers. Baker includes testimonies of angelic intervention, both historical and contemporary, to illustrate their ongoing ministry.
He stresses that angelic service is not reserved for a spiritual elite but is accessible to all believers who are surrendered to God and filled with the Holy Spirit. The book encourages Christians to recognize the reality of angelic ministry and to live in expectation of their help and guidance.

Baker’s work has had a significant impact on contemporary Christian thought, especially among Pentecostal and Charismatic circles. By affirming the continuity of visions and angelic ministry, he encourages believers to seek a deeper spiritual life and to remain open to supernatural experiences.
His descriptions of heaven provide hope and motivation for Christians facing hardship, reminding them of the ultimate reality that awaits. The testimonies of transformed lives-such as John Bunyan, Sadhu Sundar Singh, and William Booth-demonstrate the power of heavenly visions to inspire faith, perseverance, and sacrificial service.
In modern times, Baker’s emphasis on the reality of heaven and angelic ministry continues to shape Christian eschatology and spirituality, fostering a sense of expectancy and awe regarding the unseen world.

Below are key verses cited in the book, presented in English (light blue) and Traditional Chinese (purple on azure), with brief explanations:

"In the last days, God says, I will pour out my Spirit on all people. Your sons and daughters will prophesy, your young men will see visions, your old men will dream dreams." (Acts 2:17)

"But you have come to Mount Zion, to the city of the living God, the heavenly Jerusalem... to the spirits of the righteous made perfect." (Hebrews 12:22-23)

"He showed me the river of the water of life, clear as crystal, flowing from the throne of God and of the Lamb." (Revelation 22:1)

"The city does not need the sun or the moon to shine on it, for the glory of God gives it light, and the Lamb is its lamp." (Revelation 21:23)

"Are not all angels ministering spirits sent to serve those who will inherit salvation?" (Hebrews 1:14)

"Eye has not seen, nor ear heard, nor have entered into the heart of man the things which God has prepared for those who love Him." (1 Corinthians 2:9)

"Heaven and the Angels" offers a compelling vision of the afterlife that is both biblically grounded and experientially rich. Baker’s synthesis of scripture, testimony, and personal experience invites believers to embrace the reality of heaven and the ministry of angels, fostering hope, faith, and a deeper sense of spiritual purpose. The book’s enduring impact lies in its ability to inspire Christians to live with eternity in view, confident of the glorious inheritance that awaits.