Find a answer about purify ourselves is to be dificult. What can recommend the imam to us to be pure or how we can purify ourselves ?
You have asked a very important question and for that we commend you.
Allah Ta’ala sent Rasulullah (Sallallaahu Alayhi Wasallam) with four great
responsibilities, one being, Tazkiyatun-Nafs (purification of the soul).
Every person has many shortcomings, for example, pride, anger, jealousy,
etc. and living with such evils brings grief and agony to a person. Every
effort should be made to change the evil of pride to humbleness, anger to
forgiveness, jealousy to submission to the Will of Allah. The most efficient
way to reform oneself and attain spirituality is to be under the supervision
of a reliable and qualified spiritual guide (Shaykh). Until you find such a
person, we advise you communicate with the pious and learned scholars and
seek and follow their advice.
and Allah Ta’ala Knows Best
Mufti Ebrahim Desai