White soul

 Hecuba: 

... O my child, whose white
Soul laughed amid the laughter of God's light,
Cassandra, what hands and how strange a day
Have loosed thy zone! And thou, Polyxena,
Where art thou? And my sons? Not any seed
Of man nor woman now shall help my need.
  Why raise me any more? What hope have I
To hold me? Take this slave that once trod high
In Ilion; cast her on her bed of clay
Rock-pillowed, to lie down, and pass away
Wasted with tears. And whatso man they call
Happy, believe not ere the last day fall! 

 Euripides (480 – 406 BC) 
The Trojan Women