Verse 12

यथा गन्धर्वसंकल्पात्पुरमेवं हि चेतसः ।सवातायनमाकारभासुरं जायते वपुः

In plain words

Just as a city springs up from a gandharva's saṃkalpa, so indeed from citta is born a body, radiant in its very shape, complete even to its windows.