Can Celestials cry?

[Acero]

there has been many emotional moments up above the clouds. from Roy being reunited with his family to someone carrying Juan's baby and is going to marry Philippe tommorow.
http://www.giantitp.com/comics/oots0486.html

to discovering that you had a 22

however, dead people now have no limits, which many soon discover (postmortem Time Disassociation Disorder). but can they cry?
can they even retain water?

[Dark Faun]

Celestials are not the spirits of the dead people in Celestia. They're outsiders of pure Law and Good.

And Roy cried in #496 (http://www.giantitp.com/comics/oots0496.html) so yes, the dead can cry.

[hamishspence]

Lantern Archons are both celestials and petitioners.

And Roy's Archon makes it clear that celestials in OoTS can progress.

Celestials are usually ascended mortal souls- and most D&D novels depict them as such.

[Optimystik]

If the Tavern of Infinite One-Night Stands is any indication, the plumbing works as long as the soul in question wants it to work.

[SoC175]

Celestials can cry and depending why they cry, angel tears can either be a component for good or really evil spells