When placed in the world, the source block will also gradually float upwards to the highest solid block whenever possible. Above a certain y-level (default at y=120), it will always dissipate into air. In addition, when placed above 80% of the "threshold level" (i.e. y=96 by default), the source block will dissipate randomly. Should entities collide with the source block, they would be slowed and redirected as well. The properties can be switched off in the configuration file.
Upon contact, the Levitation effect will be applied onto the player for 6 seconds.