In the final lecture in the series, we are made aware by Shaykh Yasir Qadhi of ways to increase Iman and also of the ways that Iman diminishes from our lives.
Of the most important blessings that we need to appreciate is the feeling we have when we fasted the whole day, prayed Taraweeh, Qiyam, read the Quran, that feeling of fulfillment is something that money could not buy it. The more Iman you have, the easier it will be to fight other temptations. That is why Allah (SWT) says in the Quran that when you pray, automatically that prayer will help you deal with so many of your vices. Simply turning to Allah will help you battle many of the other problems of this world.
Shaykh Yasir Qadhi then goes on to explain ways that will help us enhance or fortify our understanding of Iman and make us reignite the thirst for acquaintance with Iman.
Further into the talk, the Shaykh sums up in brief the internal and external factors that decrease our Iman. He concludes this breathtaking series with a deep question - Are we going to let the tree of Iman wither in the wake of our misdeeds or are going to guard it with our heart and soul to achieve greatness in the Hereafter?