“The journey of changing one’s mind, heart or way of thinking.”
This Greek term denotes the change of mind; a reorientation, a fundamental transformation of outlook of a person’s vision of themselves and the world; a new way of loving oneself, others and God. 
Don’t we all wonder what others are thinking about us? Even if it is a small mistake we made, we feel insecure and start overthinking, sound relatable?
Then we try so hard to delete it, but it doesn’t work. And you know what, why not fill your mind and heart with happy and positive thoughts, and eventually those thoughts that you wanted to delete will automatically disappear.
This is repentance, some may call it regret.
But I like to think of it as the rearrangement of our mind, leading to a new way of thinking or the change of the mind that leads to the change of our heart and then our actions.
Regret is that uncomfortable feeling, it stops there. Repentance is realizing it and looking through different perspectives to start the journey of metanoia.
Metanoia seems void but what makes it meaningful is repentance and perspective. And what makes it complete is you.
If we ever get stuck on something, feeling guilty and trying to delete it, it ends there, we will never be able to start this beautiful journey.
There is so much for us to explore and learn in ourselves, so much to think through different lights and at the end of the day to be happy in our venture.
Metanoia, this beautiful journey never ends, it just goes on and on forever.