To become a Catholic Christian is to regain one's Christian unity.
There is something truly joyous in discovering the real Catholic Church after one has the personal revelation that Christians are sinfully divided. The New Testament condemns church division/factions as one of the most grievous scandals (see 1 Corinthians 1:10, 12:25; Galatians 5:20) as it introduces strife and enmity between those called to loving unity in God.
Many of us who were raised Protestant either just ignore the fact if we are lax Christians, while those of us who were more zealous attempted to resolve the problem through proselytizing others into our denomination (I was of the latter category as a youth). Of course, such small scale efforts really don't work when hundreds of other denominations are undoing their work through the same efforts.
Yet, it is also truly frustrating after becoming Catholic when Protestant family members criticize you without being willing to engage in intellectual dialogue. It is one thing for one's family not understand or appreciate why people become Catholic, but it is another for them not to respect you enough to ask questions and learn why you made such an involved change in life.
Hence, many of us have written books on the matter of conversion to the Catholic Church. In fact, since the 1990s there has risen a whole genre of Catholic convert books now. There are about 20 of them that have become extremely influential in exposing Protestant misconceptions about the Catholic Church, helping people realize that The Church is not a big evil machine.
Several of such books have specific focuses and recount personal narratives of how the Holy Spirit moved them to discover what they needed to discover the real Catholic Church. Since the Protestant Revolt it became "necessary" for Protestant to demonize the Catholic Church in order to justify their divisions. If they called the Church evil, who could blame them for separating from it?
Thus the great division of the Protestant Revolt became another fulfillment of the prophet Isaiah's bewailing, "Woe to those who call evil good, and good evil; Who substitute darkness for light and light for darkness;Who substitute bitter for sweet and sweet for bitter!" (Isaiah 5:20) Protestants began calling The Church "evil" and their division "good." And the bitter relations between Catholics and anti-Catholic Protestants began.
I have written one of the latest of these books. I was raised as a nominal Christian, yet with many Seventh-day Adventist ideas (my Father's upbringing). Seventh-day Adventism is one of those denominations that are not only "anti-Catholic", they are hyper-anti-Catholic as an actual part of their theology.
After the Holy Spirit led me into The Church via answered prayers, I was easily re-influenced by Seventh-day Adventism and became a practicing one for about six months again. This lasted until I became conflicted with where God was leading me through answered prayer and where others were leading me through their interpretational arguments. Ultimately, I came to recognize the difference between allowing humans to lead me astray and allowing God to lead me by prayer.
The projected release date of the book is this fall through CHResources. It is entitled:
Praying Made Me Catholic
With the Biblical & Historical Reasons I Must Remain Catholic