Ways to purify the soul: Learn the language of Quran and understand what you recite. Fix the tawheed – affirm the Oneness of Allah and worship and seek help from Him Alone. Correct your Salaah. It is the connection between you and your Lord. Salaah cleanses us from sins and shields us from committing them again. Sadaqah – giving charity to the needy people from your wealth. Abandoning all the sins, both major and minor. Isthighfar and persistence is the key.