Why does Ezekiel spend hundreds of days on his side?

Ezekiel gives us an extreme example of a sign act.

Resources used:

Faithlife Study Bible

Cultural Backgrounds Study Bible

Victor Harold Matthews, Mark W. Chavalas, and John H. Walton, The IVP Bible Background Commentary: Old Testament, electronic ed. (Downers Grove, IL: InterVarsity Press, 2000), Eze 4:1–3.

Sign Acts: The Weird, Wonderful World of Prophetic Communication
Visual Aids for an Ancient Audienceby Whitney Woollard – Sep 12, 2018 bibleproject.com

Lamar Eugene Cooper, Ezekiel, vol. 17, The New American Commentary (Nashville: Broadman & Holman Publishers, 1994).