This is a great talk by Sh. Hamza Yusuf, may Allah preserve him! It well summarizes many longer works on the ailments and cures for diseases of the hearts. And addresses modern problems. It sounds fairly old, from the audio, but still very relevant. Good quick overview of knowledge in the Muslim world and our tradition of scholarship too. If you haven’t followed longer series on diseases of the hearts, this is a must-listen talk. Even if you have, its a reminder and we all need reminders. May Allah purify our hearts and give us the strength to desist from modern vices.