Everybody need peace of mind,some search in pleasures and some start serving others while some go for Sadhana. Sadhana is a practice which aids man to realize god.
Four path leading to Sadhana are Karma yoga,Raja yoga,Bhakti yoga and Janana yoga.
All parts are interlinked and we need each to get the other. Sadhana is according to capacity,temperament and choice.For development of head,heart,soul-mind and hands play important role as now a days everybody is wanting instant Moksha!
Karma yoga prepare aspirant for the knowledge of self, and moulds.Bhakti is love-pure love which is generated while working for self and others.Then Raja yoga keeps balance of mind and body. Then one can realize the truth,one has to work hard on all grounds equally because all paths are followed by the other.
Work for work sake without attachment.A Yogi needs strong non-attachment for the fruits of his actions.For attachment is death, ego destroy all in one second.whereas non attachment  is eternal life,freedom from all bondage's where ego has no place.The heavy load you felt on you head,body and mind melts giving you a state of joyfulness.
Joy,satisfaction and free life we want.So be simple as you can.
Love is in simplicity,selflessness,sacrifice.