In the 14 auspicious dreams seen by Trishala Mata, the 12th swapna is commonly understood in many Jain traditions as a divine celestial वाहन / vimān or a heavenly palace-like flying chariot.

Meaning in English

This dream signifies that the child to be born will have:

• very high spiritual greatness
• pure and elevated soul
• divine influence
• the ability to rise above worldly bondage
• a glorious path toward liberation

Medium details

The celestial vehicle in the dream shows that the coming Tirthankar’s soul is not ordinary. It is a soul of supreme merit and purity. Just as a vimān moves above the earth, the soul of the future Tirthankar will also be above attachment, hatred, pride, and greed.

It also indicates:

• nobility of character
• expansion of fame and influence
• progress toward moksha
• a life connected with divine and spiritual upliftment

In simple words, the 12th dream means that the child will be highly sacred, spiritually powerful, and destined for महानता.

If you want, I can also give the meaning of all 14 dreams in simple English.