One of the pleasures of Paradise is about eye and the Shias who shed tears due to the sufferings Imam Hussein went through and they are spiritually pleased by doing so, of course, On the Day of Resurrection and Paradise they will certainly have the highest pleasure and enjoyment. It worth noting that the pleasure of shedding tears for Imam Hussein peace be upon him not only prevents the darkening of the hearts but also renovate and brighten up the soul and result in tenderness and gaiety which is of the highest and incomparable pleasures and enjoyment.
source : erfan.ir