Unable to keep eyes pure

Condition: By the grace of Allah, I am able to offer tahajjud salah. It is during this time that I also read my tasbihs, Quran, the Arabic duas of Munajat-e-Maqbul. When I go to the shops and bazaars, I am able to safeguard my eyes. But when I teach children, I am unable to keep my eyes pure. I teach both boys and girls. 

Answer: Safeguarding a single glance is better than 100 000 tahajjud salahs. Safeguarding the eyes is compulsory. If not, all the illumination of tahajjud will go to waste. It is not even permissible to teach baaligh girls. 
Tell yourself even if i have to give my life in the process, i will not look no matter how strong the temptation may be!

Solutions to spiritual maladies - Hazrat Shah Hakeem Muhammad Akhtar Saab (Rahimahullah)