The leaves of bay laurel are best known for their use as a kitchen seasoning. Bay Laurel is actually an evergreen shrub / tree native to the Mediterranean.
Potted plants are often moved between indoor and outdoor locations as the seasonal weather dictates and make attractive houseplants as they benefit from some extra outdoor heat and light in the summer.
During their outdoor summer vacations, potted plants should still be somewhat protected from full outdoor sun. If you grow your bay tree indoors, keep it near a sunny window for the winter.