A famous du’a (supplication) of the Prophet صلى الله عليه وسلم is:
‘Oh Allah! Grant my soul its taqwa and purify it, for you are the best who can purify it, for you are the Master of my soul and you are the Keeper o f my soul’
This is a beautiful du’a and we should repeat it often.
[Shaykh Abu Yusuf Riyadh ul Haq mentioned this du’a in a talk entitled ‘Love in Islam’ which was delivered on 20th March 2005 in South Africa].