It's a vital part of their heritage.

Meaning

The tradition is important for their history and background.

Examples

• John: The annual harvest festival is quite significant.
• Alice: Yes, <b>it's a vital part of their heritage</b>. It’s been celebrated for centuries.
• John: What are some key elements of the celebration?
• Alice: Many traditional aspects have been passed down through generations. <b>It's a vital part of their heritage</b>.