Jesus said: "I must be about my father's business" [Luke 2:49] "I must do the works of Him that sent me while it is day. The night is coming when no one can work" [John 9:4]
"No time. Busy", is something we often say and hear. "Busy doing what?", is a good question to ask.
Jesus' time on this earth was only thirty three years and we know how much He accomplished! The reason: From his childhood, he knew the purpose of his life. That became his passion. He geared his life towards that goal. He did not fail in his duties and responsibilities towards his earthly family; He had task of training his disciples; Crowds were thronging to him to be healed and hear his teachings. He found time to do all these things because he took time to equip himself with strength from heaven. He took time to fellowship with father God.
Needless to say, He would have set aside many worthless things. His call and purpose was to bring redemption to the lost mankind by his cruel death and glorious resurrection. He wanted to finish it perfectly with out any flaw. He succeeded because He managed His limited time by making the right choices.
We are called to follow Jesus. We are called to be Holy and to be saints. Sure there are other specific fields we are called to be employed in. If we do not forget our main call, it will be easy to avoid unwanted, worthless things that rob our time and purity. We could concentrate on things that will keep us holy, in order to enjoy eternity with Christ who paved the way to heaven.