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Share Your Thoughts/Learning/Insights from this Lecture, for the benefit of others.
You may think its common knowledge, but remember there are new and young Shia's - You may be blessed to make a connection that others were not able to. They will benefit from your insight. You may see things the way others do not see.
or
Just reflect on it for your own knowledge/Wisdom. Understanding the Concept will clarify many things.