If you wish to travel far and fast, travel light. Take off all your envies, jealousies, unforgiveness, selfishness and fears.

The travel here refers to life. So, if you you want to live a long life and a good quality one as well, you should get rid of all the hard feelings. By avoiding envy, jealousy and egoism and by being a forgiver and not being afraid of taking chances, your heart is in peace; you make your travel/life longer and a better one.