Being a religious person, my favorite one is: "When My servants ask you ˹O Prophet˺ about Me: I am truly near. I respond to one’s prayer when they call upon Me. So let them respond ˹with obedience˺ to Me and believe in Me, perhaps they will be guided ˹to the Right Way˺." - Quran
Religion is a very important part of every day life.
This is a very vital quote. I'm not that religious but I like this quote from he Quran (I'm a Christian btw). I don't really know any teaching from the Quran,
but one thing I do know is that if you draw close to Allah and obey Allah, Allah will never let that person down.
And it is true. However, this life itself is a test. So, it might also lead towards the other way. And, whatever religion onr may follow, there is always talk about optimistic thing. I also have few quotes written from Bible, because they are super optimistic.
Have a beautiful day!
Peace 🕊