Vandhana Sutra typically refers to a small collection of salutation verses (stotra) in Jain literature. Its core meaning is reverence and homage. Here’s a simple, traditional understanding:

• What it means: It is a prayer or hymn in which a devotee pays homage to the Tirthankaras (the liberated teachers), Arhants, Siddhas, and sometimes other enlightened beings. The tone is humble and devotional, asking for the strength to follow the right path and to overcome delusion.
• Purpose: Reciting Vandhana Sutra is a way to cultivate humility, respect for the Jain path, and a mental vow to live righteously. It is often recited at the start of a puja, study, or other spiritual practices.
• General content: The verses typically emphasize reverence to the immaculate nature of the Tirthankaras, seeking their blessings, and aligning one’s thoughts, speech, and actions with the Dharma.
• Digambar vs. Shwetambar: Both traditions honor the same core idea of salutation to the Tirthankaras, but the exact wording and the set of verses can differ between Digambar and Shwetambar canons and regional practices.

If you want, I can provide a short excerpt of the original verses and a precise, tradition-specific meaning (with the exact wording as found in the canonical texts). I can also point you to a Jain Knowledge source that presents the verses in their traditional form.