Personally, I find some of the Dhamma points that can be objected to from a rational point of view - and there's a part of my mind that does so - operate on another level (?) to motivate and inspire. Take for example the teaching that if one abstains from breaking a precept, one thereby provides safety to innumerable beings. So abstaining from a drink, for example, protects countless beings. That isn't rational, but it's inspirational, and works to conditoin abstinence. There are other stories of the Buddha (or great Arahats) suddenly disappearing from where they are to reappear in the presence of a meditator, to give them timely guidance. Irrational, but stirring. It's very hard to live a life rooted in wholesome behaviour without inspiration, I think. Of course, the way practicing the Dhamma uproots harmful tendencies and opens the mind to wisdom is inspiring in a very rational way as well.
Anyways, welcome again.
Kammalakkhano , bhikkhave, bālo, kammalakkhano pandito, apadānasobhanī paññāti
(The fool is characterized by his/her actions/the wise one is characterized by his/her actions/Wisdom shines forth in behaviour.)
(AN 3.2 Lakkhana Sutta)