The 1st Swapna that Mata Trishla saw was the white elephant.

Meaning:

It symbolizes that the child to be born will be:

• very noble and pure
• powerful and majestic
• compassionate and spiritually elevated
• a soul of great merit (punya)

In Jain tradition, the white elephant is an auspicious sign of strength, dignity, and greatness. It indicated that Bhagwan Mahavir would be born as a highly sacred and extraordinary soul.

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