Usually crying is sentimental, superficial and…well material. But it can be spiritual. Rupa Goswami, for one, distinguished between tears of grief and tears of transcendental love and longing. Rupa Goswami writes in Nectar of Devotion: “Out of jubilation, anger or separation there may be the pouring down of tears from the eyes. When such tears are very cold they are due to jubilation, and when they are due to anger the tears become hot.” Here’s something Srila Prabhupada once said about it: “Crying is a great transcendental pleasure. That they cannot understand, the poor fund of knowledge. Caitanya Mahaprabhu was simply crying. That is love. So that they do not understand, how crying can be pleasure.” (From a room conversation in Vrndavana on 19 July 1977)