Complex sentence: The force of gravity may eventually cause a wine to "fall bright" naturally, as the larger suspended particles gradually settle to the bottom of the storage vessel, allowing the wine to be siphoned or "racked" off the compact solids into a new container.
Split into simpler sentences: The force of gravity may eventually cause a wine to "fall bright" or clarify naturally, as the larger suspended particles gradually settle to the bottom of the storage vessel. The wine can then be siphoned or "racked" off the compact solids into a new container.