Holding a mega stone creates a powerful connection between you and the gemstone.  It inspires a powerful shift in one's emotional state; helps one to be more calm, able to focus, meditate &  better tap into spiritual vibrations- ready to manifest your intentions.  The shape is excellent for relaxation, meditation & crystal healing. Placing on bedside table to meditate with before sleeping or placing in your workspace for when you need it.  They are also great for home display adding beauty & energy to your space.  
Collect them all!