Pesachim Daf 34

Reish Lakish teaches us that with regards to Holy things "היסח הדעת" inattentiveness renders the Holy thing unfit. Even if we know that it did not become טמא (ritually impure) the lack of guarding the Holy thing from  becoming impure is already enough. This can be a powerful lesson for us. There are many things in our lives that can be considered Holy. We ourselves are referred to as a ״גוי קדוש״ a Holy nation. Thus we must be vigilant in not allowing any היסח הדעת to render our sanctity compromised.