Sadaf as a name is originated from the name of sea shell. Nature- the nature of sea shell is that it is bent on one side and the circumstance could be that a person may turn his back on one side and be more dedicated towards the other side.May Allah make us turn our back towards evil and more focused ourselves towards good.It is mentioned in ayaat 46 surah Al-Anaam as Say: Have ye imagined, if Allah should take away your hearing and your sight and seal your hearts, Who is the Allah Who could restore it to you save Allah? See how We display the revelations unto them! Yet still they turn away.In this ayaat the last word yasdifoo -means turn away-eraaz barastey hai. This was mentioned in context to mushrikeenMay Allah guide all of us towards right path.