There is a path of karma Yoga.. (the path of work)
There is a path of Bhakti Yoga.. (the path of devotion or love)
Then for the select few, there is a path of Sankya Yoga (the path of intellect)
All these paths (there may be more) lead to the same destination. Lord Krishna has held the path of intellect superior to the others. It is mentioned that it is only for select few since it is believed that only select few posess the required level of intellect and the ability to stick weathering the extremities coming along the way.
Extremities come in the form of questions and various difficult decisions. One wrong decision takes you back several steps and it may not be possible to make a come back.
Destination is Realisation or Enlightenment.