The same Krsna who taught this particular yoga to Arjuna, has also told what is the importance of this yoga and which is the highest yoga (which is Maadanaakya Mahabhava Bhakti). If you believe in part of the scripture,(whether you accept or not) means that you have Absolute faith in the author of that concept. So in effect one should put more and more effort in trying to understand the remaining part of the concept which is again Absolute. Might takes several lifetimes, but keep your effort on, do not blindly rule it off just cuz you were not grown upto it. The legend is eternal, .....can you ever scratch the sky !!
This again means that one need to see beyond four walls of his bathroom, once he has understood the use of bathroom.