Bism Illah wa as salaamu alaykum wa Rahmat Allah wa Barakatuh.
Beauty is such an interesting thing: the outer beauty and the inner beauty. Even the nicest looking person doesn't look lovely if they don't love Allah and have a clean heart. Clean hearts and pure intentions shine from faces like a beautiful illumination. The smiles of those with inner beauty are irresistible to all like souls, they emanate and meet with gleaming smiles. While our outer beauty lies with what Allah has decreed for us, our inner beauty makes us more beloved to people than the most beautiful exterior. The clean heart loves the clean heart...and that's what the believers see in each other.
If you wish to be eternally beautiful, rectify your heart. This is a short but excellent e-book on this matter: How to Rectify your Heart by Shk. Abdul Islaam Saalih bin Taaha Abdul Waahid.
So many of you I have never met, never seen...but our hearts speak to each other and our smiles reach each other all over the world. May our hearts be a source of light on Yawm Al Qiyama - ameen.