I am also a convert. As my conversion was sudden, I knew I needed to be a Catholic before I ever talked to a Catholic or went to a Catholic church.
That very first time I entered a Catholic church, it was one of the happiest and most spirit-filled days of my life. I was immediately hit with that wonderful aroma. I think it was the combination of old incense and beeswax candles. I love it. Every time I encounter that beautiful scent, I recall that first day I entered a church and how I felt.
Not long ago, it hit me at a weak moment as I entered my parish, it was Easter Morning. The previous evening, Easter Vigil, much incense was used and many candles were burned so the aroma was particularly strong. The smell induced me to recall the events surrounding the terrible and wonderful day God came to me. And then the joy of the miracle of my supernatural and instantaneous conversion from atheism. It was a moment of deep connection with God. I had this strong image of the incense as all the prayers being offered to God. It was almost like the smoke was made of tiny letters and word, rising to God.
Oh God, thank for the gift of faith. Help me, Lord, to be more charitable and more faithful to You. Amen.