Going back many decades, I remember I accepted Christ into my life because I felt the emptiness of life and was pretty much convinced intellectually that he was the Savior. I acted alone and felt relieved afterwards, nothing more. A couple of decades later, I experienced the Holy Spirit strongly after I got involved with the Catholic Charismatic Movement. I did not know much about being baptized in the Spirit, but I was open and desired it. So here's the key. You can know something and believe in it and nothing special happens. But even if you don't know much about something, but trust in God and desire it, he grants your wish. It is in desiring (not knowing) something that the Lord opens the door for you. So, desire to know the Lord to discover and experience his wonders!