>>653912
Not to derail this thread about orthodoxy but let me tell you a short thing or two. Aquinas' Summa is not meant to be read as a book. It's (and that's why it's called Summa) like an encyclopedia which you happen to open once you have a specific issue and look for an answer to that.
Furthermore - and this goes for everyone - faith is a gift from God. Real faith is not gained through "knowing enough", it is gained by asking God to give you the Grace of having faith and to be able to deeply root this faith in your heart so that it may grow through, with and in Christ. Which is why I'm saying: Having interest sparked by, for example, aesthetics is nothing bad - but you need to step into practice (i.e., prayer and going to Mass/Divine Liturgy) and catechesis in order to not only get a grasp of the faith in your head but your heart.
If someone happens to not know whether to become Catholic, I advise to pray. Especially the most holy Rosary is very powerful as it was revealed by the Holy Mother herself.
– https://www.rosarycenter.org/homepage-2/rosary/how-to-pray-the-rosary/
If someone happens to not know whether to become orthodox (or Eastern Catholic for that matter) it's probably best to pray the Rule of Theotokos as taught by the orthodox saint Serafim of Sarov.
– http://www.bombaxo.com/blog/files/rule.pdf
That is, these prayer rules are very thorough and dedicated but they are "worth" (if one can even use this very materialistic word) every single bit of effort you put into them. Of course, if you're completely new, you start with a Sign of the Cross (In the name of the Father and of the Son and of the Holy Spirit. Amen.) in the morning and dedicate/consecrate your day to God, you might want to say a prayer of thanksgiving before and after each meal, say the Prayer of the Heart/Jesus Prayer (Lord Jesus Christ, Son of God, have mercy on me a sinner. [Amen.]) for a short time in conjunction with meditation on the mysteries of Christ (for beginners: 5 consecutive minutes a day is already enough, see https://www.youtube.com/watch?v=y0ip_CN4vF4), and so on and so forth.
In any way, prayer, going to Mass or Liturgy is key - and on that occasion, people also should start to talk to priests (obviously preferably to the ones they go to parish to) and have talks, RCIA/catechumen classes and so on and so forth.
I beg God that he may bless you on your ways.